} Fine-thread Grade 8 bolts hold tighter under vibration — which is why they're the standard for automotive
Specifications Fastener types Tubular flat U-nuts
Flat washers and lock washers — one set per diameter
oxide-free solder connection
Specifications Fitting type Push-to-connect (push-in
120 Piece UNC All Steel Lock Nut Assortment Starter Kit Diameter_15/32 } Fine-thread Grade 8 bolts120 all steel prevailing torque lock nuts, UNC coarse thread, organized in a compact plastic drawer no nylon insert, so they stay put where heat, chemicals, or high torque would compromise a standard nylon lock nut. Covers 1 4" through 1 2" UNC, the range most shops need for equipment, vehicle, and structural applications. What's Included All steel prevailing torque lock nuts in 1 4" 20, 5 16" 18, 3 8" 16, 7 16" 14, and 1 2" 13 UNC coarse thread