7/16 Thick Heavy Duty Thru Hardened SAE Washers Zinc Yellow Made In USA 5/8-11 it features a square head

it features a square head that provides excellent grip and prevents slipping during installation

with a 10-32 thread size

making these screws ideal for outdoor use

This 1-1/8-12 Hex Jam Nut

It is made of steel and has a hex head for easy tightening and loosening

7/16 Thick Heavy Duty Thru Hardened SAE Washers Zinc Yellow Made In USA 5/8-11 it features a square headThese 7 16" thick heavy duty thru hardened SAE washers are made of zinc plated yellow steel and are manufactured in the USA. They are designed to provide a strong and durable connection between two pieces of metal, and are ideal for use in high stress applications. The washers are also corrosion resistant, making them suitable for use in outdoor or wet environments.