How to choose the best Sems Screw manufacturer, supplier, wholesaler, distributor, and Stainless Steel Screws factory?

Terminal Screw

Screw Washer assembly
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The main function of the mating part and square terminal washers are to provide anti-loose and protect the surface of the lock. If the surface of the mating part is not flat or the aperture is large, the washer can increase the contact surface to achieve the anti-loose effect. If the surface of the mating part is smooth, the washer protects its surface from screw/nut scratches. In addition, many users will choose to combine the screws, eliminating the action of inserting the washer, greatly reducing the construction time. Products are widely cover the power tools, home appliance, electric and other types of products.

Clamp Screw

Screw Washer assembly
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7.Rohs/Reach Compliant/Halogen Free Compliance

Screw terminals are low in cost when compared to other types of connectors, and can be readily designed into products for circuits carrying currents of from a fraction of an ampere up to several hundred amperes at low to moderate frequencies. The terminals easily can be re-used in the field, allowing for the replacement of wires or equipment, generally with standard hand tools. Screw terminals usually avoid the requirement for a specialized mating connector to be applied to the ends of wires.

Screw And Washer Assembly

Screw Washer assembly
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY ,CR3+BZ, CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The types of square washers we can assembly are Connecting Washer, Square Washer, Heavy Square Washer, Terminal Washer, saddle clamp & cable clamp.

ChiaSing offers a wide variety of wire terminations preassembled to many types of screws, including chip-free thread forming screws. These terminal “sems” are dimensionally controlled for trouble-free automated assembly.

Combination Screw

Screw Washer assembly
Customized/ISO/DIN/GB/IFI/DIN46288 Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z, Cr3+ZY ,CR3+BZ, CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Connecting washers in accordance with DIN46288 this standard is best used for space-saving structures and are suitable for connecting 1 or 2 ladders with the same or different cross-sections. Their elastic suspension is low and can maintain contact force.

In order to ensure the correct connection, the connecting plate must be prevented from rotating, and the ladder must be prevented from moving when necessary.

Double Washer Screw

Screw Lock Washer
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Function with double washer: Washers are divided into flat washers and spring washers. Due to the small contact area with the base after the screws are tightened, adding flat washers can increase the pressure bearing area of the base, and tightening will not cause damage to the base or silk. The spring washer increases the stress of the screw buckle and tightens the screw tightening effect.

Square Cone Sems

Captive Washer Screw

Screw Lock Washer
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The types of lock washers we can assembly are Internal Tooth Washer, External Tooth washer, Spak Washer, beveled washer, Square Cone Washer, Flat washer, Conical Washer, Spring Washer, Serrated lock washer, Toothed lock washer, Spring lock washer, lock washer, Crest Cup washer, JIS Type C washer, DIN 6905, Contact Washer

Screw and washer assemblies are commonly called "SEMS" when they are preassembled. Tooth lock, helical spring lock, dished type and conical washers, to name a few, can be preassembled to machine screws, as well as, thread forming, thread cutting and self-drilling screws. These combinations offer unique capabilities that would otherwise be unavailable for easy and efficient assembly operations.

Screw And Washer Set

Screw Lock Washer
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The Square Cone washer (Square Dome) absorbs high installation torques, generates and sustains tension, distributes the load and spans oversize holes. Replaces three parts: screw, flat washer and helical washer, in many applications.

The unique washer on this assembly combines the tension generating characteristics of a spring washer with the locking tension of the helical washer to increase shock absorption and vibration resistance.

Thread Forming Screw

Self-Tapping Screws
Customized/ Type AB /Type B / S-Tite / P-Tite / B-Tite/ PT thread/ Hi-Lo thread / thread Cutting / forming thread

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Thread-forming self-tapping screws-developed directly from iron screws. Thread-forming self-tapping screws must be drilled before use, and then screw the screws into the holes. They are strongly squeezed to fit the female threads. The material will be squeezed between the male threads, which is called thread forming self-tapping screws. It can only be used for thin and plastic materials, so it has been developed; Thread Cutting Tapping Screws-in the thread One or more cutting ports are cut at the tail end, so that when screwing into the pre-drilled hole, the tail and teeth of the screw are used to cut the matching female thread in a similar manner to a screw attack. It can be used in thick plates, which are hard or Fragile and difficult-to-shape materials.

Self-Tapping Screw

Self-Tapping Screws
Customized/ Type AB /Type B / S-Tite / P-Tite / B-Tite/ PT thread/ Hi-Lo thread / thread Cutting / forming thread

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

What is a triangular tooth self-tapping screw?
It is a self-tapping screw. Its thread is an ordinary thread with a curved triangular section. The threaded surface also has high hardness. Therefore, when connecting, screws can be connected. Tap the internal thread in the bottom hole of the part to form a connection. This type of screw is characterized by low tightening torque and high locking performance.

According to different head types, according to different thread teeth, there are many types of screws. Our common ones are machine screws and triangle screws. For example: S-Tite / P-Tite / B-Tite / C-Tite screw.

The first advantage of triangular screws is that they can be tapped. Facing some customers, the hardness of the product is relatively hard, such as iron plate. The triangle screw just uses his self-tapping feature. Better lock into the product. The second advantage of triangular screws is to save nuts. It does not need to be equipped with nuts like mechanical screws. This is more conducive to customers to save costs.

Stainless Steel Self Tapping Screws

Self-Tapping Screws
Customized/ Type AB /Type B / S-Tite / P-Tite / B-Tite/ PT thread/ Hi-Lo thread / thread Cutting / forming thread

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

There are two other types of screws with special thread design. The first type is High-Low Tapping Screws—used in plastic or other low-density materials. Double thread design, high thread (larger tooth outer diameter) has a flatter and sharper thread angle of 30 degrees. Low thread (smaller tooth outer diameter) has a thread angle of 60 degrees, tooth height is only high Half of the thread.

The combination design of high and low threads reduces the rotating torque, improves the pull-out strength, and greatly reduces the risk of fracture of the combined work piece. Another type is used in the assembly of drywall in the construction industry. The self-tapping screws with thread design are especially suitable for plastics, parts boards and wood.

Thread Cutting Screw

Self-Tapping Screws
Customized/ Type AB /Type B / S-Tite / P-Tite / B-Tite/ PT thread/ Hi-Lo thread / thread Cutting / forming thread

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

These thread cutting screws have an off-center shank slot which provides a true cutting action, eliminating a separate tapping operation and generating a perfectly mated thread that contributes to a stronger fastening. When compared to machine screws in tapped holes, fewer thread cutting screws will achieve the same holding power. Thread cutting screws may be removed and redriven.

As a general rule, Type 1 thread cutting screws are recommended for steel parts having a thickness less than half of the screw diameter. The Type 23 thread cutting screw, with its wider shank slot, is recommended for use in cast iron and soft metals such as zinc and aluminum castings — and in some plastics.

The Type 25 thread cutting screw, combining a wide thread cutting shank slot and acute cutting edge with spaced threads for low driving/high stripping torque, is ideal for cutting mating threads in thermoset plastic.

The Type 17 screw will drill its own hole and cut close mating threads in wood, light plastics and particle board. A complete line of Types F and BF thread cutting screws is also available from ChiaSing.

Special Fastener

Adjusting Screw / Multi-stage Screw / Multi-stroke screw
Customized

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Multi-stroke forging is an efficient and fully automatic production method. After the material is multi-forged and processed, the strength and toughness of the material are improved due to the refinement of the grain and the effect of the shifting of the network structure. Manufacture of non-standard shaped parts.

Multi-stroke cold forging screws have a wide range of uses, such as auto parts, bicycle parts, electrical appliances, bearing parts, gear parts, building materials and hardware, power tool parts, mechanical parts, etc.

Seat Belt Bolt

Adjusting Screw / Multi-stage Screw / Multi-stroke screw
Customized

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Adjusting Screws (including two-die two-blow screws, two-die four-blow screws, three-die two-blow screws, four-die two-blow screws, and five-die five-blow screws). Using special progressive multi-stage machines, multi-blow cold forming is the go-to process for applications requiring components with complex internal and external part geometries.

This process forms intricate shapes by deforming and splitting metal into the intended shapes, without any loss in material.

Bushing Nut

Multi-stroke screw (Bushing Nut)
Customized

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M6 to M24 Length:5 to 70mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The bushing can separate two metal parts to avoid direct collision, friction damage or noise generation, while allowing metal objects to move within a certain range. The bushing is an insulator that can effectively block the energy transferred to the bushing. Therefore, when the vehicle is driving in a large pothole or raised area, it can absorb vibration and reduce noise.
Products are widely cover bicycles, motorcycles, automotive and other types of products.

Cold Formed Parts

Adjusting Screw / Multi-stage Screw / Multi-stroke screw
Customized

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Cold forging is a rapid prototyping process. Under normal room temperature conditions, the metal is first cut by using a disc element or rod as a base material, and then the material is extruded and flowed in various ways by continuous extrusion. There are a series of molds inside. The metal forging is squeezed beyond the yield strength of the metal, thereby deforming the forging into the desired shape. Since the material properties of each metal are different, the compressive strength of the material cannot be exceeded when the metal is deformed, otherwise the forging will break.

Semi Hollow Rivet

Semi-hollow rivet
Customized

1. Material: Steel, Stainless steel, Copper, Aluminum, Alloy steel
2. Finish: Acid pickling, Passivation, CR3+ White Zinc, CR3+ Blue Zinc, Copper, Tin, Nickel, etc.
3. Process Capability: Diameter M1.6 to M4 Length:4 to 70mm
4. High quality and competitive price.
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

A rivet is a spike-shaped object for joining two parts (or members) with a through hole and a cap at one end. In riveting, the riveted parts are joined by their own deformation or interference. From low-current fields such as telecommunication equipment to appliances that block large currents, they are used in a wide range of rivet-type contacts. With the independently developed cold forming machine to improve the dimensional accuracy, etc., it meets various needs.

Flat Head Rivets

Semi-hollow rivet
Customized

1. Material: Steel, Stainless steel, Copper, Aluminum, Alloy steel
2. Finish:Acid pickling, Passivation, CR3+ White Zinc, CR3+Blue Zinc, Copper, Tin, Nickel, etc.
3. Process Capability: Diameter M1.6 to M4 Length:4 to 70mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

Semi-hollow rivets (also known as tubular rivets) are similar to solid rivets, but they have a partial hole (opposite the head) at the tip. The purpose of this hole is to reduce the amount of force needed for application by rolling the tubular portion outward.

Semi-hollow rivets used in non-load-bearing structures with fasteners, not only easy to riveting, but also to ensure a certain connection strength, commonly used in non-solution structure of the connection, such as clothing and footwear. The use of flexible cable manufacturing, the general requirements cannot rip riveting after cracking.

Metal Eyelet

Semi Tubular Rivet
DIN 7340, JB/T 10582-2006

1. Material: Steel, Stainless steel, Copper, Aluminum, Alloy steel
2. Finish: Acid pickling, Passivation, CR3+ White Zinc, CR3+ Blue Zinc, Copper, Tin, Nickel, etc.
3. Process Capability: Diameter M1 to M6 Length:4 to 70mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

Rivets are often used for wire riveting between objects and usually require the use of specific special tools. There are many types of rivets, such as semi-circular rivets, flat-cone rivets, countersunk rivets, semi-sunk rivets, flat rivets, hollow rivets, tubular rivets, sign rivets, etc. to meet different operational needs.

Semi Tubular Rivet

Flat Head Rivets
Customized

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Passivation, ...etc.)
3. Process Capability: Diameter M1.6 to M10 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

The setting of solid rivet fasteners requires access from one side of the structures. Solid rivets are driven using hydraulically driven squeezing tools or even handheld hammers. When only one side is available, blind rivets are more appropriate tools.

Dowel Screws

Double Ended Hex Bolt

double end thread / stud bolt
Customized

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M3 to M8 Length:3 to 50mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Double-headed teeth, also known as double-headed teeth, double-headed screws, double-headed bolts, headless double-threaded screws, headless double-threaded screw bolts, double-ended studs, as the name implies, both ends have threads used in the main body. For large equipment, it is necessary to install accessories, such as sight glass, mechanical seal seat, reduction frame, etc. These are the stud bolts that are used.

One end is screwed into the main body. After the accessories are installed, the other end is equipped with a nut. Because the accessories are often If it is disassembled, the thread will be worn or damaged. It is very convenient to use studs to replace. When the thickness of the connecting body is very large and the length of the bolt is very long, stud bolts are used.

Rocker Arm Stud

hex double ended / bolt screw
Customized

1. Material: Steel, Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M3 to M8 Length:3 to 50mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Bolts generally refer to screws with a relatively large diameter, and they can also have no heads, such as stud bolts.

Usually, it is not called "stud bolt", but is called " Double-ended stud ". The most commonly used form of double-ended studs has threads at both ends and a polished rod in the middle.

The main purposes of stud bolts are as follows:
1. It is used for the accessories that need to be installed for the main body of large equipment, such as: sight glass, mechanical seal seat, reduction frame, etc. At this time, stud bolts are used, one end is screwed into the main body, and the other end is equipped with a nut after the attachment is installed. Because the attachment needs to be removed frequently, the thread will wear quickly, and it is very convenient to use stud replacement.

2. When the thickness of the connecting body is large and the bolt length is very long, stud bolts will be used at this time.

3. It is used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as: concrete roof truss, roof beam suspension monorail beam suspension, etc. Double-headed screws need to be prevented from loosening.

In actual work, external loads such as vibrations, changes, and high-temperature creep of materials will reduce friction. The positive pressure in the thread pair disappears at a certain moment, and the friction force is zero, thereby loosening the threaded connection. After repeated action, the threaded connection will relax and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal work and cause accidents.

Hex Socket Head Cap Screws

Hexagon Socket Head Bolt
Customized

1. Material: Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

A socket head cap screw is your best choice in applications with limited access. Available in a wide range of dimensions, this fastener can be efficiently adjusted with tools from a standard socket set, which require very little clearance around the fastener.

Socket head cap screws are also considered to have a more modern appearance, although this is subjective. Technical equipment and electronics often use socket head cap screws, creating a visual association that may carry over to other products and applications.

Tamper Proof Hex Screws

Hexagon Socket Head Bolt
Customized

1. Material: Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

It can withstand larger loads. It has six force faces for more use than a slot screw and a cross-shaped screw with only two sides. The hexagon socket bolt can be countersunk in use, that mean the entire nut is sunk inside the work piece to keep the surface of the work piece flat and beautiful.

Compared with the outer hexagonal screws, the inner hexagon is suitable for more assembly occasions, especially in narrow places, so it is easy to assemble and repair, and easy to debug.

Socket Screw

Hexagon Socket Head Bolt
Customized

1. Material: Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Its strength is three times as strong as machine screws, which is the strongest level among the general standardized screws. It has a hexagonal hole on the head. Usually, it is used without any nuts. Because of its great assemblity and breakage prevention, it is used for fixing machine tools, automotive parts etc. Usually, its surface treatment is black oxide. May be tightened with a hex allen key wrench.

Compared with hex bolts, its head size is small. So frequently its head is sunk into spot facing to save a space.

Allen Bolt

Hexagon Socket Head Bolt
Customized

1. Material: Alloy steel, Stainless steel
2. Finish: according to you need (Cr3+Z,Cr3+ZY,CR3+BZ,CR+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

A socket cap screw, also known as a socket head cap screw, socket screw, or Allen bolt, is a type of cap screw with a cylindrical head and hexagonal drive hole. The term socket head cap screw typically refers to a type of threaded fastener.

Forged heat-treated alloy examples are high strength fasteners intended for the most demanding mechanical applications, with special alloy formulations available that are capable of maintaining strength at temperatures in excess of 1000 degrees F (587 degrees C).

A hex key (sometimes referred to as an Allen wrench or Allen key) or hex driver is required to tighten or loosen a socket screw. Socket head cap screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket.

Cheese Head Screw

Fillister Head Screw
Customized/BS/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Slotted Fillister head machine screws have a large oversized head and are used to attach metal to metal or metal to wood. A Fillister head machine screw, sometimes called a cheese head screw, is similar to a Pan head machine screw but with greater side height.

Captive Panel Screws

Fillister Head Screw
Customized/BS/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Fillister heads are used in counter bored holes. A counterbore is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw, is required to sit flush with or below the level of a workpiece's surface. Whereas a counterbore is a flat-bottomed enlargement of a smaller coaxial hole, a countersink is a conical enlargement of such. A spotface often takes the form of a very shallow counterbore.

Shoulder Screw

Fillister Head Screw
Customized/BS/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

Captive screws are specially designed to lock into pre-drilled holes so that the screw can be fastened and unfastened without the screw being detached. One of the primary benefits of captive screws is that they provide secure fastening while reducing costs associated with lost screws or damage from foreign object debris.

Captive screws are available in a variety of styles and materials to suite diverse application needs. Captive screws are frequently used in electronic enclosures, exhibits/signs, medical devices, and network cabinets.

Button Head Bolt

Button Head Screw
Customized/ISO/DIN/GB/IFI Standard

1. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
2. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
3. High quality and competitive prices
4. Prompt delivery time
5. Country of Origin: China / Taiwan
6. Rohs/Reach Compliant/Halogen Free Compliance

Socket button head machine screws to ISO 7380 are available from stock in steel grade 4.8, 5.6, 8.8,10.9, 12.9, A2 stainless steel and A4 stainless steel. Other materials are available upon request including brass, and aluminum.

They host a hexagonal recess and are driven using a hex wrench or insert bit. This makes these screws more efficient than the slotted screw products due to the higher resistance to cam-out, and they can be used with power drivers enabling faster installation and higher torque to be achieved.

We also stock socket button head screws in UNC, UNF, BSW and BSF.

Button Head Cap Screws

Button Head Screw
Customized/ISO/DIN/GB/IFI Standard

1. Material: Steel, Alloy steel, Stainless steel, Brass, Copper,
2. Finish: according to you need (Cr3+Z, Cr3+ZY, Cr3+BZ, Cr3+ Real Yellow Zinc, Ni, Bo, Tin, Passivation, ZnFe, ZnNi, ...etc.)
3. Process Capability: Diameter M1.2 to M12 Length:3 to 80mm
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant/Halogen Free Compliance

A button head socket cap screw is a type of cap screw with a cylindrical head and hexagonal drive hole. A button head socket cap screw is most commonly driven with an allen wrench or hex key. Most button socket cap screws feature clean heads with no stamping or marking for a nice clean finished look.

Socket head cap screws are typically used in machine parts, die fixturing, and clamping. Socket head cap screws are ideal for applications in which there is not enough space to maneuver wrenches or sockets.

Battery Contacts

PCB Lug Terminal

Stamping Parts
Customized

1. Material: SPCC, Carbon Steel, Stainless steel, Copper
2. Finish: according to you need
3. Process Capability: 25T to 200T
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

Forging is used for parts made from ingots or rolled metal Stamping.
Stamping is a method of pressure working of metals in which the flow of metal is restricted by the surfaces of the recesses and projections of a die. The upper and lower parts of the die form a closed cavity in the shape of the part being made.

Precision Stamped Parts

Stamping Parts
Customized

1. Material: SPCC, Carbon Steel, Stainless steel, Copper
2. Finish: according to you need
3. Process Capability: 25T to 200T
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

Bending-a plastic forming method of bending sheet metal, pipe fittings and profiles into a certain angle, curvature and shape. Bending is one of the main processes widely used in the production of stamping parts. The bending of metal materials is essentially an elastoplastic deformation process.

After unloading, the work piece will produce elastic recovery deformation in the direction, which is called spring back. Spring back affects the accuracy of the work piece and is the key technology that must be considered in the bending process.

Metal Stamping Parts

Stamping Parts
Customized

1. Material: SPCC, Carbon Steel, Stainless steel, Copper
2. Finish: according to you need
3. Process Capability: 25T to 200T
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

Stamping is a cold stamping processing method, which uses the power of conventional or special stamping equipment to punch the material (metal or non-metal) to cut, bend or shape it into the finished shape and size of the mold.

Stamping processing can be roughly divided into several different processing types such as shearing, bending, forming and drawing. The machine tool used for stamping is called a punch, and the die used is called a stamping die.

Turned Components

Machining Parts
Customized

1. Material: free-cutting steel, Alloy Steel, Aluminum, Stainless steel, Brass
2. Finish: according to you need
3. Process Capability: Diameter 2.5 to 20mm ; Length 2.5 to 40mm (Tapping diameter MAX 10, tapping depth MAX 12mm)
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

The lathe is a machine tool that drives the motor by electric power, rotates the main shaft through a transmission system such as a belt and a gear, drives the work piece on the spindle chuck to rotate, and then uses a cutter fixed on the tool holder to perform cutting. The main work piece is a circular rod.

The cutting work includes machining end face, inner and outer diameter, arc, taper, drilling, boring, eccentricity, embossing, cutting, grooving, and machining of the screw.

Screw Machine Parts

Machining Parts
Customized

1. Material: free-cutting steel, Alloy Steel, Aluminum, Stainless steel, Brass
2. Finish: according to you need
3. Process Capability: Diameter 2.5 to 20mm ; Length 2.5 to 40mm (Tapping diameter MAX 10, tapping depth MAX 12mm)
4. High quality and competitive prices
5. Prompt delivery time
6. Country of Origin: China / Taiwan
7. Rohs/Reach Compliant

The automatic lathe can automatically turn the work piece in the order of machining. After the machining is completed, the knife will be automatically retracted and fed, and the next finished product will be cut, which is suitable for mass production of smaller diameter work pieces.

Products are widely cover the automobile and motorcycle, electronics, motors, electrical appliances, machine industry, pneumatic tool industry, bicycle industry, and other types of products

Turning Part

PCB Standoffs

standoff screw
Customized

1.Material: free-cutting steel, Alloy Steel, Aluminum, Stainless steel, Brass
2.Finish: according to you need
3.Process Capability: Diameter 2.5 to 20mm ; Length 2.5 to 40mm (Tapping diameter MAX 10, tapping depth MAX 12mm)
4.High quality and competitive prices
5.Prompt delivery time
6.Country of Origin: China / Taiwan
7.Rohs/Reach Compliant

Hexagonal copper column is a kind of fastener product, and its inner and outer threads are processed by hexagonal copper rod. Of course, in addition to copper materials, there are also products made of stainless steel or carbon steel, but more commonly used copper materials are used. Therefore, they are sometimes collectively referred to as hexagonal gaskets. There are two types of hexagonal isolation columns, one is formed by external thread and internal thread.

There is also a hexagonal rod, the whole is internally threaded. Hexagonal copper pillars are mainly used in cabinets or circuit boards as isolation supports. According to the different use environment, you can choose different materials and different surface treatment methods.