6-20 x 2 Slotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc 7/8-9 NE This 5/16-18 x 7 1/2"

This 5/16-18 x 7 1/2" partially threaded carriage bolt is made of steel with a zinc finish for corrosion resistance

They are also known as prevailing torque nuts or lock nuts

The teeth bite into the surface of the bolt or screw

This lag screw is commonly used to attach acoustical panels to walls or ceilings

It has a slotted drive and a diameter of #2-56 (approximately 0

6-20 x 2 Slotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc 7/8-9 NE This 5/16-18 x 7 1/2"These 6 20 x 2 Slotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc screws are designed for use in a variety of applications. They are made of zinc plated steel for corrosion resistance and have a slotted indented hex washer head for easy driving. The self tapping design means that they can be driven into metal without the need for pre drilling. These screws are fully threaded for maximum holding power and are available in a