Fastener Locknut - 3/8""-16

Fastener Locknut - 3/8""-16

This is a 3/8"-16 Unitorque style locknut, a one-piece, all-metal fastener designed for high-vibration applications common on concrete mixer trucks. The top threads are intentionally distorted to create a strong, prevailing torque that grips the bolt, preventing it from backing out without the need for chemical thread lockers or separate lock washers. Made from Grade C steel with a zinc finish for corrosion resistance, it is a crucial piece of hardware for securely mounting various components on general mixer equipment.

Key Features

• All-metal, one-piece design for reliability
• Prevailing torque feature resists loosening from shock and vibration.
• Thread Size: 3/8"-16 UNC (Coarse).
• Grade C steel construction for enhanced strength.
• Zinc plated finish for corrosion resistance.
• Also known as Stover, Autolock, or Toplock nut.

Fits These Mixers

McNeilus, Terex, Con-Tech. This is a general-purpose fastener used across various non-critical applications on concrete mixers from brands like McNeilus, Terex, and Con-Tech. A Terex parts catalog lists a 'LOCKNUT GR C 3/8-16 UNC' with part number 19353 for use in multiple locations on rear discharge mixers.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.