Home > Allen CSK Screws
Explore our selection of Allen CSK Screws, designed for a wide range of industrial applications. Built to satisfy demanding industry standards, our screws deliver outstanding durability and corrosion resistance. Depend on our adaptable product options, competitive prices, and quick delivery to guarantee your satisfaction. Whether for construction, infrastructure, or industrial work, our Allen CSK Screws exceed rigorous demands, delivering reliability and inventive design. Trust our commitment to quality and know-how for exceptional results.
| Allen CSK Screws Standard | ISO 7380, DIN7991, DIN 912 ASTM, ANSI, JIS, EN, AS, GB |
|---|---|
| DIN 912 carbon steel 12.9 Hexagon allen head cap screw Sizes | M1.6, M2, M2.5, M3, M3.5, M4, M5, M6, M7, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30 |
| Screw Head | Pan head, flat head, oval head, hex head, phillips head |
| Din7991 A2 Ss Countersunk Screw Csk Allen Socket Screws Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Thread Requirements | ASME B1.1, UNC & UNF, Class 2A |
| Size | Dia | Thread Dia | Head Dia (mm) | Head Height (mm) | Allen Key Size | Thread Length |
|---|---|---|---|---|---|---|
| M3 | 3mm | 2.86mm | 5.7 – 6 | 0.95 – 1.2 | 2 | 30mm |
| M4 | 4mm | 3.82mm | 7.64 – 8 | 1.5 – 1.8 | 2.5 | 40mm |
| M5 | 5mm | 4.82mm | 9.64 – 10 | 2.05 – 2.5 | 3 | 40mm |
| M6 | 6mm | 5.7mm | 11.57 – 12 | 2.25 – 2.5 | 4 | 40mm |
| M8 | 8mm | 7.64 | 15.57 – 16 | 3.2 – 3.5 | 6 | 40mm |
At Sumakhsteel, we’re proud to be the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically situated in the USA, we maintain an extensive stock of more than 25,000 tons of top-quality materials on hand and ready to ship.
Reach out to us for a fast quote tailored to your requirement.
We supply these Allen CSK Screws conforming to DIN, ISO, JIS or ANSI Standard.
Allen CSK Screws serve applications as varied as the industries that use them, led mainly by the aerospace, railway, construction and automotive sectors along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
No, Allen CSK (countersunk) screws are generally not appropriate for high-temperature use because of the constraints of their material. Such screws are usually manufactured from materials like stainless steel or alloy steel, which offer less heat resistance than materials like titanium or particular stainless steel grades engineered for high-temperature settings. When an application demands tolerance to elevated temperatures, the recommended approach is to select screws made from materials that are specifically rated for those conditions.
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