Allen bolts (socket head cap screws)
Allen bolts have a cylindrical head with a hexagon socket, tightened with an Allen key. The compact head fits in tight spaces and counterbored holes, which is why they are standard on machines, jigs, dies and moulds.
We stock grade 12.9 black Allen bolts for strength and SS 304 for rust resistance, plus CSK (countersunk) and button head Allen screws.




