1/4-20 x 1 1/2 Six Lobe Pan Thread Cutting Screw Type F Fully Threaded Zinc 1/4-20-0 These 3/8" regular split lock

These 3/8" regular split lock washers are made of zinc and are heat treated for added strength

this screw offers excellent corrosion resistance and durability

They have a hex washer head with a 5/16" across flats and a slot drive

It is made from steel and is zinc plated for corrosion resistance

The Phillips pan head allows for easy driving and a secure fit

1/4-20 x 1 1/2 Six Lobe Pan Thread Cutting Screw Type F Fully Threaded Zinc 1/4-20-0 These 3/8" regular split lock1 4 20 x 1 1 2 Six Lobe Pan Thread Cutting Screw Type F Fully Threaded Zinc is a screw with a 1 4 20 thread size, a length of 1 1 2 inches, and a six lobe pan head. It is a type F screw, which means it has a fully threaded shank. The screw is made of zinc plated steel, which provides corrosion resistance. It is designed for use in metal applications and is commonly used in automotive, construction, and manufacturing industries.