5/16-18 x 1 1/2 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc 3/4-16 NE this screw offers excellent corrosion

this screw offers excellent corrosion resistance and is suitable for both indoor and outdoor use

The 6-lobe pan head provides a secure grip for driving and prevents cam-out

With a heavy hex head design

The 6-32 x 1 6-Lobe Pan Machine Screw Fully Threaded Black Oxide is a small

5/16-18 x 1 1/2 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc 3/4-16 NE this screw offers excellent corrosion5 16 18 x 1 1 2 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc is a type of screw that has a hexagonal head with a serrated flange. The screw is made of steel and has a zinc coating. It is 1 1 2 inches long and has a diameter of 5 16 inches. The screw is used to fasten metal to metal and is often used in automotive and construction applications.