These low profile adjustable stops provide for proper workpiece positioning. They have a low toe profile to keep the stop out of the way from machining operation. Allows for quick removal and insertion of parts. Includes slot nut and socket head cap screw. The body is made from 4140 alloy steel with a black oxide finish. The serrated jaw is made from 4140 alloy steel, quenched and tempered, with a black oxide finish. The t-slot nut is made from 4145 steel with a black oxide finish. The socket head cap screw is made from 4135 steel with a black oxide finish.