5/16-18 x 3 1/2 Slotted Indented Hex Washer Head Machine Screw Fully Threaded Zinc WM 9 and a black oxide

9 and a black oxide finish for corrosion resistance

It has a Phillips pan head and a 3/8-16 thread size

making it a great choice for projects both indoors and outdoors

They are easy to install and provide a secure and long-lasting connection

It is 1/4-20 x 1/2 inches in size

5/16-18 x 3 1/2 Slotted Indented Hex Washer Head Machine Screw Fully Threaded Zinc WM 9 and a black oxideThe 5 16 18 x 3 1 2 Slotted Indented Hex Washer Head Machine Screw Fully Threaded Zinc is a type of screw that is used in a variety of applications. It is made of steel and has a zinc coating for corrosion resistance. The screw has a slotted head and an indented hex washer head. The slotted head allows for easy driving with a screwdriver, while the indented hex washer head provides a secure hold when tightened. The screw is fully threaded, which means