Collection: Tensilock Set Screws

Tensilock set screws are hex flange screws threaded all the way up to the head, with serrations on the underside of the flange. The serrations bite into the mating surface and resist loosening from vibration, and the flange spreads the load, so no separate washer is needed.

The serrations mark the surface they bear on, so avoid them on painted or soft finishes where that matters.

Pair them with Tensilock Nuts. For a plain shank, see Tensilock Bolts.