7/16 UNC SLOTTED NUT BL

Slotted nuts are used together with a bolt and a cotter pin to create a secure nut in place so that it cannot be tightened or loosened. In Metric these are known as Castle nuts.
Thread = 14 TPI

GST Incl
Excl
7/16 UNC SLOTTED NUT BL
NSLTC716B
Each
$5.6442