- UNC 5/16-18 HEXAGON SOCKET CAP SCREWS ALLEN KEY HEAD IMPERIAL BOLTS
- Socket Cap Allen Bolts
- Manufactured from A2 Stainless Steel for corrosion resistance.
- Please select your size & quantity from the drop down lists above.
- Longer bolts may be partially threaded.
- Threads are unified national coarse (UNC).
- Bolt lengths are measured from the underside of the head
- 5/16-18 tpi, Allen key size 1/4".