Stainless Acorn (Cap) Nuts - (USS) Coarse Thread

18-8 stainless steel acorn (cap) nuts, a domed nut that covers the bolt end for a finished look and protects people and wiring from sharp threads. We stock #4-40, #6-32, #8-32, #10-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 5/8-11, 3/4-10.

Specifications

Material: 18-8 stainless steel
Sizes: #4-40, #6-32, #8-32, #10-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 5/8-11, 3/4-10
Style: hex acorn (cap) nut
Thread: USS coarse and machine screw

Common Uses

Boat and trailer hardware
Furniture, railings and displays
Covering exposed threads

FAQ

How long should the bolt be for an acorn nut?
The bolt end must stop inside the dome. If the bolt is too long it bottoms out before the nut is tight.

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.