1/2"-13 UNC NE (STANDARD) NYLON INSERT LOCKNUTS COARSE LOW CARBO 9/16X4" GR5 CAP SCREWS NC

9/16X4" GR5 CAP SCREWS NC [25/BX]

Use these grade 8 partially threaded screws anywhere a hex bolt may be used

soft vinyl hand grips

Folding design for safety and easy transport

Replaces both traditional black and red rubber hoses

1/2"-13 UNC NE (STANDARD) NYLON INSERT LOCKNUTS COARSE LOW CARBO 9/16X4" GR5 CAP SCREWS NC1 2" 13 UNC NE (STANDARD) NYLON INSERT LOCKNUTS COARSE LOW CARBON ZINC CR+3 [1000BX] A hex nut with a nylon filled collar at its back end. When a screw or bolt reaches the collar, the threads and nylon form a tight frictional fit, restricting movement between the nut and bolt or screw when subjected to vibration.