8-18 x 5/8 #6HD Unslotted Indented Hex Washer High Low Screw Fully Threaded Zinc 1/4-20-.260 which means that it has

which means that it has a hexagonal head with a washer built in

these washers are suitable for use with 5/16" bolts or screws

making it suitable for outdoor and wet environments

and the fully threaded design provides secure holding power in various materials

and other precision applications where secure fastening is essential

8-18 x 5/8 #6HD Unslotted Indented Hex Washer High Low Screw Fully Threaded Zinc 1/4-20-.260 which means that it has8 18 x 5 8 #6HD Unslotted Indented Hex Washer High Low Screw Fully Threaded Zinc is a type of screw that is designed for use in a variety of applications. It is made of steel and has a zinc coating for corrosion resistance. The screw has a hex head with an indented washer, which helps to distribute the load and prevent the screw from loosening. The screw is fully threaded, which means that it can be used in a variety of materials. It is also