MIDWEST FASTENER CORP 08212 Nylon Insert Lock Nut 3/4"-10 Steel Grade 8 Yellow hardware

MIDWEST FASTENER 08212 Lock Nut

This MIDWEST FASTENER 08212 lock nut uses a nylon insert to resist loosening caused by vibration and torque. It is a Grade 8 steel fastener with a yellow finish, designed for demanding mechanical assemblies. The 3/4"-10 thread specification suits heavy-duty structural and automotive connections.

Suitable Applications and Limits

This nut suits maintenance crews, fabricators and automotive technicians who need a reliable prevailing-torque fastener for high-strength joints. It is not intended for applications that require a free-spinning nut, a different thread pitch or a non-metallic locking element. Buyers needing a jam nut, a flange nut or a larger diameter should look elsewhere.

Capacity and Headroom

The Grade 8 rating provides high proof load capacity for structural steel and heavy equipment mounts. The nylon insert maintains locking performance through repeated assembly cycles until the insert wears. Extreme temperatures or chemical exposure beyond the nylon's tolerance will reduce locking effectiveness.