These adjustable toe clamps have a low profile to keep the clamp out of the way from machining operation. The jaw moves forward and downward as the clamp is tightened. Allows for quick removal and insertion of parts. T-slot nut and socket head cap screw are included. Body made from 4140 alloy steel. Serrated sliding jaw made from 4140 alloy steel, with a black oxide finish. T-slot nut is made from 1045 steel with a black oxide finish. Socket head cap screw is made from 4135 steel with a black oxide finish.