1/2 UNC NYLOC NUT SILVER ZP

The Nyloc nut is an economic locking nut and ideal in applications where vibration or motion could loosen or undo the nut. It uses a nylon insert located towards the top of the nut, reducing its inner diameter, which then deforms over the mating thread.
Thread = 13 TPI

GST Incl
Excl
1/2 UNC NYLOC NUT SILVER ZP
NNYLC012Z
Each
$0.2177