This is a special grade 5 hex head shoulder bolt made in the USA and finished with commercial zinc with bake and clear chromate sealant. The bolt measures 5/16-18 X 1-1/4 and is supplier on an annual blanket order basis to our US based customer.
Engineered Source Inc
Supplier and Distributor of Fasteners & Related Products
Santa Ana - Orange County - Los Angeles - Inland Empire - San Diego - Southern California - Cont. United States - Mexico