BSF NYLOC NUTS NYLON INSERT LOCKING NUT ZINC PLATED STEEL 1/4" 5/16" 3/8" 1/2"

BSF Nyloc Nuts Bright Zinc Plated. BSF type P nyloc nuts. Manufactured from zinc plated steel. Nylon insert binds with the male thread to help prevent loosening. Spanner size; 7/16". Spanner size; 5/8".

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