4-40X1/4 Slotted Pan External Sems Machine Screw Fully Threaded Zinc (Pack Qty 10,000) BC-0404ESP

$215.51
SKU:
BC-0404ESP
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Description

Slotted Pan External Sems Machine Screw Fully Threaded 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.