1/4-20X1 1/2 Slotted Indent Hex Washer Thread Cutting Screw Type 23 Full Thread Black Oxide (Pack Qty 1,250) BC-14243SWB

Steel type-23’s are well-suited for cast iron and zinc, aluminum die castings, and plastics. The type-23 design provides excellent chip clearing with minimum tightening torques. 18-8 stainless screws offer additional resistance to corrosion. When using any thread-cutting screw, the material in which the threads are cut should have a lower hardness by at least When using any thread-cutting screw, the material in which the threads are cut should have a lower hardness by at least 10 to 20 Rockwe