Stainless Heavy Hex Nuts - (USS) Coarse Thread

18-8 stainless steel heavy hex nuts, thicker and wider across the flats than standard hex nuts, for heavy loads and larger bearing surface. We stock 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 5/8-11, 3/4-10, 7/8-9, 1"-8.

Specifications

Material: 18-8 stainless steel
Sizes: 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 5/8-11, 3/4-10, 7/8-9, 1"-8
Style: heavy hex
Thread: USS coarse (UNC)

Common Uses

Structural and heavy equipment in corrosive areas
Anchor bolts and threaded rod
Water treatment plants

FAQ

Heavy hex or standard hex nut?
A heavy hex nut is 1/8" wider across the flats and a little thicker than a standard hex nut of the same thread, so it spreads the load over a bigger area.

How do I stop stainless threads from galling?
Stainless threads can seize (gall) when tightened fast or under heavy load. Put anti-seize on the threads, tighten slowly at low speed, keep the threads clean and don't overtighten.

Can I use stainless with zinc plated or galvanized parts?
Use stainless nuts and washers with stainless bolts and screws. In wet conditions, stainless touching zinc plated, galvanized or aluminum parts can cause galvanic corrosion of the zinc or aluminum.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.