Stainless Acorn (Cap) Nuts - (SAE) Fine Thread

18-8 stainless steel acorn (cap) nuts, a domed fine thread nut that covers the bolt end. We stock #10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20, 5/8-18.

Specifications

Material: 18-8 stainless steel
Sizes: #10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20, 5/8-18
Style: hex acorn (cap) nut
Thread: SAE fine (UNF)

Common Uses

Automotive and marine trim
Covering exposed threads

FAQ

What do USS coarse and SAE fine thread mean?
USS (UNC) coarse thread has fewer threads per inch and is the general purpose standard; it goes together fast and is less likely to cross thread. SAE (UNF) fine thread has more threads per inch for finer adjustment and better hold under vibration. The nut must match the thread.

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.