1/4-20X1/2 Unslotted Indent Hex Washer Thread Cutting Screw Type F Full Thread Black Oxide (Pack Qty 4,000) BC-1408FWB

$545.31
SKU:
BC-1408FWB
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Description

Unslotted Indent Hex Washer Thread Cutting Screw Type F Full Thread Black Oxide

Steel thread-cutters are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic. Stainless screws offer additional resistance to corrosion, 18-8 moreso than 410. 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 Rockwell hardness points