4-40X5/16 3/16 Hex Jackscrew Male 300 Series Stainless Steel 8-32.080 it features a self-tapping design

it features a self-tapping design that eliminates the need for pre-drilling

These 12-14 x 1 1/2 inch unslotted indented hex washer full thread self-drilling screws in black oxide are designed for use in metal applications

The flat point design ensures a flush fit against the mating surface

from construction and roofing to fencing and decking

4-40X5/16 3/16 Hex Jackscrew Male 300 Series Stainless Steel 8-32.080 it features a self-tapping design4 40X5 16 3 16 Hex Jackscrew Male 300 Series Stainless Steel is a high quality fastener designed for use in a variety of applications. It is made from 300 series stainless steel, which provides excellent corrosion resistance and durability. The jackscrew has a 4 40 thread size and a 5 16 inch length. It features a 3 16 inch hex head for easy installation and removal. This jackscrew is ideal for use in marine, automotive, and other applications where