Bulk 1/2-13 Slotted Hex-Washer Taptite Alternative Thread-Rolling Screws – Zinc Wax – Monster Bolts Length:300 Qty - 1/2-13 x 2" Internal Tooth Lock Washers feature

Internal Tooth Lock Washers feature teeth on the inner circumference that dig into the screw head or nut and the mating surface

Complete your assembly with Made in USA nuts and washers sized for 1/4-28 UNF threads:

while the serrated integrated washer head locks firmly against vibration—no separate lock washer required

Bulk NE and NM Nylon Insert Locknuts – Coarse Thread Stainless Steel 316 (US Inch Sizes)

Bulk 1/2-13 Slotted Hex-Washer Taptite Alternative Thread-Rolling Screws – Zinc Wax – Monster Bolts Length:300 Qty - 1/2-13 x 2" Internal Tooth Lock Washers featureMonster Overview: Bulk 1 2 13 Slotted Indented Hex Washer Head Taptite Alternative Thread Rolling Screws from Monster Bolts give you true field flexibilitydrive them with a 5 16 flat blade screwdriver in a pinch or power them home with a 3 4 nut driver for maximum torque. The beefy trilobular body roll forms reusable threads in untapped steel and aluminum, shaving production time while locking up tight against vibration. A bright zinc bake & wax