McMaster 97135A250 High-Strength Steel Nylon-Insert Locknut, Pack of 10, Grade 8, Zinc Yellow-Chromate Plated, 1/2"-13 Thread 60RK39 Harness Sizing XL

Harness Sizing XL

Zero The Tool At Any Position of The Spindle Hold Button to Freeze Display

Barrel Style Serrated Barrel

The SnareIt® no touch hand safety tool enables users to quickly tighten or loosen a cable around an item to move

Base Width 6 in

McMaster 97135A250 High-Strength Steel Nylon-Insert Locknut, Pack of 10, Grade 8, Zinc Yellow-Chromate Plated, 1/2"-13 Thread 60RK39 Harness Sizing XLVersatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use. High Strength Steel Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium strength