Miller Jam Nut (1/2"-20)

Miller Industries 1/2"-13 Nylon Lock Nut (Part #83321)

Keep your towing equipment secured with genuine Miller Industries replacement hardware. The Miller Industries 83321 Nylon Lock Nut is an OEM fastener designed specifically to prevent loosening caused by severe vibration, road shock, and heavy dynamic loading during towing and recovery operations.

Featuring an integrated nylon insert, this lock nut grips bolt threads tightly without requiring safety wiring or lock washers, making it an essential component for routine carrier and wrecker maintenance.

Key Features & Benefits

• OEM Compatibility: Genuine replacement part designed specifically for Miller Industries towing equipment, including Century and Chevron car carriers.

• Vibration Resistance: The internal nylon ring deforms over the bolt threads to create a secure friction lock that won't back off under high vibration.

• Corrosion-Resistant Finish: Plated for durability against harsh weather, road salt, and job-site grime.

• Reusable & Reliable: Maintains locking capability through multiple servicing cycles without damaging male thread integrity.

Product Specifications