M14-2.00 Din 439 Class 04 Hex Jam Nut Zinc (Pack Qty 300) BC-M14D439B

Din 439 Class 04 Hex Jam Nut Zinc

Class 04 metric hex jam nuts are tightened against the work surface and a Style 1 or Style 2 hex nut is tightened against the jam nut to keep it from loosening. Class 50 A2 stainless hex jam nuts are used in the same manner with A2 stainless screws