Conquest 1-3/4″-5 Grade C NU Heavy Nylon Insert Locknut Plain

The Conquest 1-3/4″-5 Grade C NU Heavy Nylon Insert Locknut is engineered for securing oversized structural connections in environments where movement and vibration are expected. Designed with coarse 5 TPI threading and a nylon insert, this locknut resists loosening without the need for additional locking hardware or adhesives. The internal nylon ring grips the mating bolt threads, providing a friction-based hold that keeps assemblies tighteven under constant stress.

Heavy-Pattern Locknut for Structural, Mechanical, and Indoor Equipment Builds

Manufactured from hardened Grade C carbon steel and finished plain, this locknut is built for use in clean, dry indoor settings. The heavy-pattern design offers increased bearing surface and load distribution, making it well suited for demanding industrial or structural tasks. Whether youre anchoring equipment, framing mechanical systems, or performing maintenance in high-vibration zones, this locknut delivers long-term performance and reliability with fewer retightening cycles.

Key Features

• Built-In Nylon Insert: Creates internal thread friction to resist loosening from vibration and torque.
• Heavy-Pattern Strength: Rugged Grade C steel construction ensures durability under load.
• Thread Type/TPI: Coarse 5 TPI for rapid engagement and strong thread hold.
• Plain Finish: Designed for indoor, non-corrosive environments.
• Large-Scale Fit: Ideal for use with oversized threaded rod and bolts.

Applications

• Machinery assembly and heavy maintenance operations
• HVAC structural support and duct framing
• Equipment frames and heavy-duty mounting systems
• Light industrial and indoor manufacturing builds
• Structural bolting where constant vibration is a concern

Installation Tips

• Hand thread initially to protect the nylon insert before torqueing.
• Use torque-rated tools appropriate for large, heavy-pattern hardware.
• Confirm coarse-thread (5 TPI) compatibility with mating bolts or rod.

Related Items:

• A307 Hex Bolts
• A307 Threaded Rod