5/16-18 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc (Pack Qty 1,500) BC-31NR

$80.71
SKU:
BC-31NR
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Description

Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc

Requires a greater amount of torque to loosen than to tighten the nut. Will span oversized or poorly aligned holes. Flange provides a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts. Does not gall screw threads.