Grade 8 Nylon Insert Lock Nuts (USS) Coarse

Grade 8 Nylon Insert Lock Nuts (USS) Coarse

Grade 8 (C) nylon insert lock nuts in USS coarse thread combine Grade 8-level strength with a nylon locking ring that grips the bolt and resists loosening from vibration. They are yellow zinc plated and match Grade 8 coarse bolts on trailers, equipment and heavy-duty assemblies. We stock sizes 1/4"-20 through 1-1/2"-6, including the popular 7/8"-9, and a 204 piece assortment.

Specifications

• Strength: Grade C, the lock nut grade for use with Grade 8 bolts
• Thread: USS coarse (UNC)
• Sizes: 1/4"-20 through 1"-8, plus 1-1/8"-7, 1-1/4"-7, 1-1/2"-6
• Finish: yellow zinc plated
• 204 pc. Grade 8 nylon insert lock nut assortment available

Common Uses

• Trailer, truck and equipment assemblies
• Grade 8 coarse bolts that see vibration
• Suspension and chassis repairs

FAQ

What does Grade 8 (C) mean on a lock nut?
Lock nuts use letter grades. Grade C is the strength level made to pair with Grade 8 bolts.

Are nylon lock nuts reusable?
The nylon grips less each time the nut is removed. For critical joints, use a new lock nut.

Related: Fine thread version | All Nylon Insert Lock Nuts | Grade 8 (C) Stover Lock Nuts, Coarse

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.