Fastener Locknut - 1/4""-20

Fastener Locknut - 1/4""-20

The 1/4"-20 Unitorque locknut is an all-metal, prevailing torque hex nut designed for high-vibration environments in concrete mixer trucks and batch plants. Unlike nylon-insert locknuts, this automation-style locknut features a conical top with distorted threads that mechanically grip the mating bolt, providing superior resistance to loosening caused by dynamic forces. Its all-metal construction allows it to withstand extreme temperatures and chemical exposure without degrading. This fastener is essential for securing brackets, mounts, and general hardware across front and rear discharge mixers where a reliable, long-lasting hold is critical.

Key Features

• All-metal prevailing torque design (Unitorque/Stover style) for superior vibration resistance
• Conical top with distorted threads to mechanically lock onto the mating fastener
• Withstands extreme temperatures and chemical exposure better than nylon-insert nuts
• 1/4"-20 coarse thread pitch for standard hardware applications
• Reusable, one-piece construction for rugged, high-stress environments

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits general fastener applications across McNeilus, Terex Advance, and Con-Tech concrete mixers, including chute mounts, bracket assemblies, and control linkages requiring a 1/4"-20 vibration-resistant locknut.

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.