Split Lock Washer, Hillman, Chrome, Internal Tooth #8

An assortment of chrome-plated internal toothed lock washer variants from The Hillman Group. Internal toothed lock washers are hardened, circular washers with twisted prongs or in teeth, in extending inward from the inside edge. These in teeth in are used to prevent nuts and bolts from loosening caused by vibration and/or corrosion. Variants included in this assortment run from #6 thru 5/8 in screw size.

• Parts work best with large head screws such as round, pan, binding and washer-head screws
• Teeth used for locking and tension
• Made of high-strength steel