Hexagon socket screws, also known as Allen screws or Allen bolts, are a superior choice for applications requiring high torque transfer and a low-profile, streamlined appearance. These screws feature a hexagonal internal drive, which provides superior engagement with the Allen key or hex key wrench compared to traditional slotted or Phillips head screws. This design minimizes the risk of cam-out, prevents tool slippage, and allows for greater torque application, making them ideal for machinery, automotive assemblies, furniture, and precision equipment. We offer a comprehensive range of high-quality hexagon socket screws, including our popular Hexagon socket flat head screws, designed for applications where a flush surface finish is critical. Other variants in our inventory include Hexagon socket flat head screws for countersunk holes and button head styles for a semi-rounded finish. Our commitment to precision engineering ensures every screw meets rigorous standards for performance in demanding environments.
The defining characteristic of the Hexagon socket screw is its internal hexagonal recess. This design offers significant advantages in confined spaces where external wrenching tools cannot fit. The six-point contact distributes force evenly, drastically reducing wear on the tool and the fastener itself. These screws are manufactured from various high-strength materials to suit diverse application needs.
Key Specifications of Hexagon Socket Screws
- Drive Type: Internal Hexagon (Hex Socket)
- Common Head Styles: Flat Head, Button Head, Cap Head, Set Screw (Cup Point)
- Materials: Alloy Steel, Stainless Steel (A2 & A4), Brass, Titanium
- Standards: DIN 912, ISO 4762, ANSI B18.3, ASME B18.3
- Surface Finishes: Black Oxide, Zinc Plated, Plain, Passivated
- Strength Grades: Grade 8.8, 10.9, 12.9 (Alloy Steel); A2-70, A4-80 (Stainless Steel)
Detailed Product Parameter Table
| Size (M) | Key Size (mm) | Head Diameter (mm) | Socket Depth (mm) | Tensile Strength (MPa, Min) | Common Lengths (mm) |
|---|---|---|---|---|---|
| M3 | 2.5 | 5.5 | 1.5 | 800 (Grade 8.8) | 5 - 25 |
| M4 | 3 | 7.0 | 2.0 | 800 (Grade 8.8) | 6 - 40 |
| M5 | 4 | 8.5 | 2.5 | 800 (Grade 8.8) | 8 - 50 |
| M6 | 5 | 10.0 | 3.0 | 800 (Grade 8.8) | 10 - 60 |
| M8 | 6 | 13.0 | 4.0 | 800 (Grade 8.8) | 12 - 80 |
| M10 | 8 | 16.0 | 5.0 | 1040 (Grade 10.9) | 16 - 100 |
