Conquest 2″-4-1/2 Grade C NU Heavy Nylon Insert Locknut Plain

The Conquest 2″-4-1/2 Grade C NU Heavy Nylon Insert Locknut is a robust fastening solution built for high-load indoor applications that experience frequent vibration or shifting. With coarse 4-1/2 TPI threading and a heavy-pattern body, this locknut delivers secure thread engagement and enhanced surface contact. The integrated nylon insert creates friction against the mating bolt threads, locking the nut in place without damaging hardware or requiring additional locking aids.

Oversized Locknut for Industrial Equipment, Framing, and Structural Installations

Constructed from hardened Grade C carbon steel and finished plain, this locknut is designed for large-diameter structural bolts and threaded rod used indoors. The heavy-pattern design offers a broader bearing surface, making it ideal for supporting heavy equipment, securing baseplates, or framing large HVAC systems. Its nylon locking insert ensures performance in assemblies that are subject to vibration, motion, or load variation, helping to reduce the risk of fastener failure or rework.

Key Features

• Built-In Nylon Insert: Maintains thread tension and prevents back-off due to vibration.
• Heavy-Pattern Strength: Thick Grade C steel body supports structural loads and torque applications.
• Thread Type/TPI: Coarse 4-1/2 TPI threads for fast installation and strong thread engagement.
• Plain Finish: Intended for indoor use in non-corrosive conditions.
• Large-Diameter Compatibility: Designed for use with 2″-4-1/2 A307 threaded rod or bolts.

Applications

• Heavy equipment assembly and support frames
• Structural HVAC systems and duct framing
• Baseplate mounting in machinery installations
• Industrial manufacturing or service-area retrofits
• High-vibration mechanical assemblies

Installation Tips

• Begin threading manually to align with bolt threads and protect nylon insert.
• Torque with heavy-duty calibrated tools rated for large fasteners.
• Ensure proper thread pitch (4-1/2 TPI) to match mating components.

Related Items:

• A307 Hex Bolts
• A307 Threaded Rod