Allen Socket Head Cap Screws (also called Allen bolts or socket cap screws) are a highly versatile fastening solution distinguished by their high strength, compact profile, and effective clamping design, making them essential for industrial, automotive, machinery, and engineering uses. Below are their SEO-optimized benefits, applications, usage instructions, and major keywords.
Key Benefits
Provide high clamping force and allow for precise tightening using an Allen key, resulting in secure joints and enhanced load distribution.
Made from robust materials such as alloy steel, stainless steel (SS304/SS316), and titanium, offering excellent shear strength and corrosion resistance for demanding environments.
Compact cylindrical head design permits installation in tight spaces where traditional hex bolts cannot fit, reducing protrusions and supporting a tidy finished look.
Available in full and half thread styles; can reduce the number of fasteners needed due to higher strength ratings like Grade 12.9.
Option for nylon patches for vibration resistance; reliable for dynamic or high-motion assemblies.
Typical Applications
Widely used in industrial machinery and production lines for secure and durable assembly.
Utilized in automotive, aerospace, electronics, robotics, power generation, oil & gas, military, and solar sector fastenings for strength and reliability.
Essential in machine tooling, furniture manufacturing, steel fabrication, and situations demanding flush mounting.
Suitable for both confined space and aesthetically focused installations where a discreet and strong solution is needed.
Usage & Installation Steps
Allen Socket Head Cap Screws are installed by driving an Allen key (hex key) into the hexagonal head recess, allowing for high torque application without risk of slipping.
Ideal for counterbored holes, ensuring the screw head sits flush with the surface for safety and a clean appearance.
Choose fully threaded screws for through-hole installations or partially threaded versions for joints requiring higher side-load capacity.
Grades such as 8.8, 10.9, and 12.9 should be selected based on application load requirements.
Available in metric (DIN 912, ISO 4762) and imperial standards; select the size and thread style suited to the project's needs.
Other Well-Known Names for Same Product
Allen Socket Head Cap Screw
Socket Cap Screw DIN 912
Allen Bolt
High Tensile Socket Head Cap Screw
SS304/SS316 Socket Head Cap Screw
Metric Socket Cap Screw
Alloy Steel Socket Cap Screw
Button Head Allen Screw
Low Head Socket Cap Screw
Socket Head Cap Screw Manufacturer
Machine Assembly Fastener
These keywords should be included naturally throughout website content to target relevant industrial fastener searches and improve SEO visibility.
|
Size (Metric) |
Head Diameter (mm) |
Head Height (mm) |
Hex Socket Size (mm) |
Thread Pitch (mm) |
|
M3-0.5 |
5.5 |
3.0 |
2.5 |
0.5 |
|
M4-0.7 |
7.0 |
4.0 |
3.0 |
0.7 |
|
M5-0.8 |
8.5 |
5.0 |
4.0 |
0.8 |
|
M6-1.0 |
10.0 |
6.0 |
5.0 |
1.0 |
|
M8-1.25 |
13.0 |
8.0 |
6.0 |
1.25 |
|
M10-1.5 |
16.0 |
10.0 |
8.0 |
1.5 |
|
M12-1.75 |
18.0 |
12.0 |
10.0 |
1.75 |
|
M16-2.0 |
24.0 |
16.0 |
14.0 |
2.0 |
|
M20-2.5 |
30.0 |
20.0 |
17.0 |
2.5 |
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