4-40X3/8 Unslotted Ind Hex Washer Internal Sems Machine Screw Full Thread Zinc (Pack Qty 10,000) BC-0406IW

$276.36
SKU:
BC-0406IW
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Description

Unslotted Ind Hex Washer Internal Sems Machine Screw Full Thread Zinc

A machine screw and free-spinning lock-washer manufactured as one assembly. Steel SEMS are available with the following types of washers: internal tooth, external tooth, split-lock and conical. Stainless SEMS are offered with external tooth lock washers.