Socket Hex Head Screw
Our socket hex head screw is manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.
Metric Flat Head Screws
These screws are easy to install using standard screwdrivers or power tools, saving time and effort during assembly. The flat head design offers excellent holding power, ensuring a reliable and secure connection.
Button Head Socket Head Cap Screw
The Button Head Socket Head Cap Screw features a button-shaped head design, which is aesthetically pleasing and suitable for applications that require a lower head profile.
Hex Socket Head Set Screw
Hex socket head set screws feature a hex socket design, allowing for easy installation and removal using a hex wrench or socket. The product is typically made from high-strength steel or stainless steel, providing excellent tensile strength and corrosion resistance.
Slotted Truss Head Machine Screws
Machine screws are used in making modular kitchens, furniture, construction equipment, etc. They are designed to be inserted into a pre-cut or pre-threaded hole. Machine screws consist of a head and a fully threaded shank.
12 Point Flange Screws
12-Point flange screws, also known as Ferry Bolts, are high-strength fasteners where the flange diameter and head thickness of the 12-Point Flange Screw are equivalent to the head dimensions of a socket head cap screw, thus permitting the 12-Point Flange Screw to be a replacement for any application that calls for a socket head cap screw.
Type I Cross Recessed Pan Head Screws
Our Type I Cross Recessed Pan Head Screws are manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.
Type II Cross Recessed Truss Head Screws
Type II Cross Recessed Truss Head Screws feature a Truss Head design, providing a larger contact area and better fastening strength. The product is equipped with a cross recess, making it easy to use with a screwdriver or screwdriver bit for installation and removal.
Composition: Carbon steel, an iron and carbon alloy, is commonly used to make steel screws. The screw’s strength and hardness are influenced by its carbon content.
Benefits: Steel screws are renowned for their sturdiness and strength. They can be used for various tasks, such as construction and woodworking.
Use Cases: Steel screws work great indoors for tasks where rust isn’t a significant issue. Additionally, they find employment in machinery and automotive applications.
Composition: An iron alloy with at least 10.5% chromium is used to make stainless steel screws. This chromium concentration provides excellent corrosion resistance.
Benefits: Stainless steel screws are perfect for outdoor, marine, and coastal applications because of their exceptional resistance to rust and corrosion. Over time, they keep their appearance.
Use Cases: External construction, marine projects, and any application where moisture exposure is anticipated are among the many uses for stainless steel screws.
Composition: Brass screws is mainly made up of copper and zinc in different proportions. The alloy becomes stronger when zinc is added.
Benefits: Brass screws can be used indoors or outdoors due to their corrosion resistance. Their golden appearance is quite appealing.
Use Cases: In situations where the screws will be visible, as well as for decorative and ornamental projects, brass screws are frequently selected.
Composition: Aluminum alloys, which can have different compositions to produce various qualities, are used to make aluminum screws.
Benefits: Aluminum screws resist corrosion and are lightweight. They are frequently employed in situations where losing weight is essential.
Applications: Aluminum screws are used in the electronics, automotive, and aerospace industries and in circumstances where weight is an issue.
Composition: Copper is the primary component of copper screws due to its exceptional electrical conductivity and resistance to corrosion.
Benefits: Since conductivity is crucial in plumbing and electrical applications, copper screws are frequently used. They provide strong resistance to corrosion.
Use Cases: Electrical equipment, wiring, and plumbing systems frequently contain copper screws.
Composition: Titanium alloys, renowned for their remarkable strength-to-weight ratio, are used to make titanium screws. These alloys may also have other elements, such as aluminum or vanadium.
Benefits: Titanium screws are extraordinarily robust and light. Even in challenging conditions, they have a high level of corrosion resistance. Titanium is also biocompatible, making it appropriate for aeronautical and medical applications.
Use Cases: Titanium screws are preferred in aerospace, medical implants, and high-performance racing cars where weight reduction is essential.
Composition: The thermoplastic polymers nylon, polypropylene, and polycarbonate are commonly used to make plastic screws.
Benefits: Plastic screws have good chemical and corrosion resistance. They are perfect for electrical applications because they are non-conductive. Moreover, they are reasonably priced and lightweight.
Use Cases: Plastic screws are frequently utilized in places where metal fasteners would not be appropriate, such as electronics, food processing machinery, and automobile interiors.
|
Screw Gauge |
Head diameter (mm) |
Shank diameter (mm) |
|
0000 |
2.74 |
1.37 |
|
000 |
2.89 |
1.44 |
|
00 |
3.04 |
1.52 |
|
0 |
3.20 |
1.60 |
|
1 |
3.35 |
1.67 |
|
2 |
4.06 |
2.03 |
|
3 |
4.77 |
2.38 |
|
4 |
5.48 |
2.74 |
|
5 |
6.19 |
3.09 |
|
6 |
6.60 |
3.30 |
|
7 |
7.62 |
3.81 |
|
8 |
8.33 |
4.16 |
|
9 |
9.04 |
4.52 |
|
10 |
9.75 |
4.87 |
|
11 |
10.46 |
5.23 |
|
12 |
11.16 |
5.58 |
|
13 |
11.88 |
5.94 |
|
14 |
12.58 |
6.29 |
|
15 |
13.30 |
6.65 |
|
16 |
14.02 |
7.01 |
|
17 |
14.73 |
7.36 |
|
18 |
15.44 |
7.72 |
|
19 |
16.14 |
8.07 |
|
20 |
16.86 |
8.43 |
|
21 |
17.56 |
8.78 |
|
22 |
18.28 |
9.14 |
|
23 |
18.98 |
9.49 |
|
24 |
19.71 |
9.85 |
|
26 |
21.33 |
10.56 |
|
28 |
22.55 |
11.27 |
|
30 |
23.97 |
11.98 |
|
32 |
25.40 |
12.70 |
The Tip
The pointed end of a screw is known as the tip. Most screws have a sharp and pointed tip that’s able to bore a hole into surfaces. The tip is usually narrower than the rest of the screw. This allows it to penetrate otherwise hard materials. Without a tip or with a wide tip — A screw may struggle to penetrate hard materials. The tip often changes depending on what material the screw is intended to be used on.
The Threading
Threading is the section of a screw that contains helical ridges. Screws rely on this threading to remove material from the surfaces into which they are driven. The threading essentially scoops out material as the screw is driven into a surface. When a screw is driven into a surface, it will displace some of the surface’s material. The material will enter the helical ridges where it travels up and out of the surface.
The Shank
Screws also have a shank. For wood screws, the shank is the unthreaded portion that’s found above the threaded portion. Wood screws have an unthreaded shank to create a stronger and more secure hold. With only part of a wood screw being threaded, it offers a stronger hold than that of traditional screws with complete threading from top to bottom.
The Head
Finally, the head is the top section of a screw. There are two types of screw heads: traditional and counter-sunk. Counter-sunk heads are intended to rest flush with the surface into which they are driven. In comparison, traditional screw heads protrude out of the surface into which they are driven. Both traditional and counter-sunk screw heads feature one or more notches, which are designed to support the use of a screwdriver.
The Drive
When people ask “Flat head of Philips head?”, they are actually referring to the type of drive not the head of the screw. The drive is a crucial component of the screw as it determines what type of screwdriver needs to be used to install the screw.
How Screws Are Made
Wire Drawing: Transforming Raw Material
The journey of a screw begins with the wire drawing process. A coil of high-quality steel wire is carefully drawn through a series of dies, reducing its diameter while increasing its length. This step ensures that the wire reaches the desired thickness, a critical factor in making screws of various sizes and strengths.
Heading: Shaping the Foundation
With the wire drawn to the appropriate thickness, it is now time for the heading process. The wire is cut into shorter pieces known as blanks. These blanks are then sent to the heading machine, where the foundation of the screw takes shape. Using a punch and die, the machine molds the blank into the desired head shape, laying the groundwork for the final product.
Thread Rolling: Forming Precision Threads
Once the screw blanks have undergone heading, they move on to the thread rolling machine. Here, the magic happens as the machine presses the blank between two dies. The material flows and shapes into the distinctive helical grooves, creating the screw's threads. This precise thread rolling process ensures that the threads are uniform, strong, and perfectly aligned, essential for the screw's functional efficiency.
Heat Treatment: Strengthening the Core
A pivotal step in the screw manufacturing process is heat treatment. The screws are heated to specific temperatures and then rapidly cooled to achieve the desired material properties. This process not only enhances the screws' hardness and strength but also ensures they possess excellent durability, enabling them to withstand the rigorous demands of their applications.
Surface Coating: Protecting and Enhancing
To enhance the screws' resistance to corrosion and improve their appearance, surface coating is applied. Various coating options are available, such as galvanizing, zinc plating, or adding protective coatings like chrome or black oxide. These coatings shield the screws from rust and provide aesthetic appeal, making them suitable for both functional and decorative purposes.
Sorting and Packaging: Ready for Deployment
With the screws now fully formed and coated, they undergo a meticulous sorting process. Sorting machines classify the screws based on their sizes and specifications, ensuring precision and accuracy. Once sorted, the screws are carefully packaged in boxes or bags, ready for distribution and use in various industries worldwide.
Dealing with stripped screws
If you encounter a stripped screw, try using a rubber band between the bit and screw head for extra grip. Use a screw extractor tool for severely stripped screws. In some cases, you may need to drill out the screw and replace it.
Exploring various screw types
Different screws serve specific purposes and choosing the right type can improve the quality of your work. Wood screws are designed for joining wood without splitting. Machine screws pair with nuts or tapped holes for metalworking. Drywall screws are designed to fasten drywall to wood or metal studs. Knowing when to use each type can greatly affect the integrity and appearance of your project.
Pre-drilling pilot holes
For certain materials or larger screws, pre-drilling can be beneficial. It prevents wood splitting, guarantees straighter screw placement, makes driving easier, especially in hardwoods, and reduces the risk of stripping screws. Select a drill bit slightly smaller than the screw diameter and drill a hole as deep as the screw length.
Using countersink bits
Countersink bits create a recess for the screw head, allowing it to sit flush with or below the surface. This provides a cleaner, more professional finish and is useful for visible surfaces or when working with hardwoods. Attach the countersink bit to your drill and create the recess before driving the screw.
Utilizing depth stops and guides
For precise screw driving, use depth stops and guides. Depth stops lead to consistent screw depth, which is especially useful when working on detailed projects. Guides can help maintain alignment, particularly when driving multiple screws in a straight line. These tools improve accuracy and efficiency, giving your project a polished look.
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contemporary studs, hex bolts, industrial bolts(0/10)
