Heavy Hex Jam Nut, Grade A, National Coarse (Bulk Carton)

Heavy Hex Jam Nut, Grade A, National Coarse (Bulk Carton)

PORTEOUS (BULK)



A six-sided internally threaded fastener which is only 2/3 the thickness of a heavy hex nut. Jam nuts are tightened against the work surface and a full heavy hex nut is tightened against the heavy hex jam nut to keep it from loosening. *PL - Plain * ZB - Zinc Blue

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