3-1/2"-8 UN-2B Heavy Hex Nut

3-1/2"-8 UN-2B Heavy Hex Nut manufactured from SA-540 Gr B23 Class 2 is built for high-strength performance and dependable reliability in demanding applications.

Nuts are machined from bar or hex stock, tapped to the thread class specified, and heat treated where the grade requires it. Heavy hex, jam, castellated, cap, seal and coupling patterns are turned in-house, so special dimensions cost no more than standard ones.