80-Piece Grade 8 Hex Flange Lock Nut Assortment - Coarse Thread, Black Phos & Oil Finish

This kit from The Bolt Barn is a lifesaver when you need that perfect Grade 8 lock nut.

It comes with 80 pieces in the most common coarse thread sizes: 1/4\, 5/16\, 3/8\, 7/16\, and 1/2\.

They're all hex drive, have a built-in flange to spread the load, and feature a locking mechanism to keep them tight.

The finish is a tough black phosphate with a light coat of oil to prevent rust.

Perfect for automotive, trailer, or heavy equipment projects where you need serious holding power.

No more running to the hardware store in the middle of a job!