HILLMAN
HILLMAN 180330 Hex Lock Nut 1/2-13 Thread Coarse Steel
SKU: 89139
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All metal lock nuts are nuts with a crowned top that is crimped to create the locking feature. These nuts are hardened to a grade C strength level, which is equivalent to 150,000 psi/min proof load strength. Grade C nuts are also recommended for use with A-325 structural bolts. Lock nuts provide excellent resistance to loosening in high-vibration applications.
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