Button Head Socket Cap Screw (ISO 7380)
Button head socket cap screws have a low-profile, slightly domed head with a hex socket drive. They provide a finished, smooth appearance compared to standard socket cap screws, and the lower profile is useful where head clearance is limited. Slightly lower torque capacity than DIN 912 due to the smaller head.
Specifications
| Standard | ISO 7380 (or ISO 7380-1 for plain head, ISO 7380-2 with flange) |
|---|---|
| Property Class | 10.9, A2-70 stainless |
| Diameter | M3 – M16 |
| Surface Finish | Black oxide, Plain, Stainless |
Frequently Asked Questions
Can I use a button head socket cap screw at the same torque as a DIN 912?
No — typically lower. The smaller head and smaller hex socket of a button head limit the maximum applied torque. Always check the screw manufacturer's torque table; for the same diameter, button head screws typically allow about 60-70% of DIN 912 torque.
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