DIN 912 Socket Head Cap Screws
We supply DIN 912 socket head cap screws in high tensile grade 12.9 self colour and A2/A4 stainless steel, from M1.2 to M64, including large diameters and extended lengths, plus grades 8.8 and 10.9. The deep cylindrical head is driven by a hex key and recesses flush into a counterbored hole - the default high-strength fastener for machine building, tooling and precision assembly. Non-standard socket screws are a speciality - send us the drawing.
Also known as: capscrew, cap screw, SHCS, allen bolt, allen screw, socket head, socket cap screw, 12.9 capscrew.
DIN 912 dimensions
| Diameter | Pitch | Thread length | Head diameter | Head depth | Key size |
|---|---|---|---|---|---|
| M1.6 | 0.35mm | 15mm | 3.0mm | 1.6mm | 1.5mm |
| M2 | 0.4mm | 16mm | 3.8mm | 2.0mm | 1.5mm |
| M2.5 | 0.45mm | 17mm | 4.5mm | 2.5mm | 2.0mm |
| M3 | 0.5mm | 18mm | 5.5mm | 3.0mm | 2.5mm |
| M4 | 0.7mm | 20mm | 7.0mm | 4.0mm | 3.0mm |
| M5 | 0.8mm | 22mm | 8.5mm | 5.0mm | 4.0mm |
| M6 | 1.0mm | 24mm | 10.0mm | 6mm | 5mm |
| M8 | 1.25mm | 28mm | 13mm | 8mm | 6mm |
| M10 | 1.5mm | 32mm | 16mm | 10mm | 8mm |
| M12 | 1.75mm | 36mm | 18mm | 12mm | 10mm |
| M14 | 2.0mm | 40mm | 21mm | 14mm | 12mm |
| M16 | 2.0mm | 44mm | 24mm | 16mm | 14mm |
| M18 | 2.5mm | 48mm | 27mm | 18mm | 14mm |
| M20 | 2.5mm | 52mm | 30mm | 20mm | 17mm |
| M22 | 2.5mm | 56mm | 33mm | 22mm | 17mm |
| M24 | 3.0mm | 60mm | 36mm | 24mm | 19mm |
| M27 | 3.0mm | 66mm | 40mm | 27mm | 19mm |
| M30 | 3.5mm | 72mm | 45mm | 30mm | 22mm |
| M33 | 3.5mm | 78mm | 50mm | 33mm | 24mm |
| M36 | 4.0mm | 84mm | 54mm | 36mm | 27mm |
| M39 | 4.0mm | 90mm | 58mm | 39mm | 27mm |
| M42 | 4.5mm | 96mm | 63mm | 42mm | 32mm |
| M48 | 5.0mm | 108mm | 72mm | 48mm | 36mm |
Is DIN 912 the same as ISO 4762?
DIN 912 and ISO 4762 both cover socket head cap screws. The standards are closely related, although dimensional or technical differences may exist. If your drawing specifies either designation, send us the requirement and we can identify the appropriate product.
What grade are DIN 912 socket cap screws?
High tensile grade 12.9 self colour is the standard supply, with grades 8.8 and 10.9 and A2/A4 stainless steel also available.
Can you supply non-standard socket cap screws?
Yes - non-standard socket screws are a speciality. We supply specials made to drawing - send us your drawing or specification.
Need DIN 912 in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.