5/16-12 x 3 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc WF188 It features a low crown

It features a low crown design that provides a low profile and a hex drive for easy installation

They have a sharp point that easily penetrates wood

this zinc jam nut is a reliable choice for demanding applications

It is made of durable steel and hot-dip galvanized for superior corrosion resistance

while the un-slotted indented hex washer head allows for easy driving and prevents cam-out

5/16-12 x 3 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc WF188 It features a low crown5 16 12 x 3 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc are designed for use in metal applications. They have a hex washer head with an indented drive, which provides a secure hold when tightening. The self tapping threads create their own mating threads in the metal, eliminating the need for pre drilling. These screws are fully threaded, providing maximum holding power. The zinc plating provides corrosion resistance.