Security Locknuts

Security Locknut Product Overview

The Security Locknut is an all-steel, fully reusable, prevailing torque locknut. It is a one-piece assembly of a spring steel insert lock ring and robust steel nut body.

These industrial-strength fasteners are used to secure bolted joints on critical applications on railroad tracks, rolling stock, locomotives, mining chains, vibratory equipment, mining equipment, material handling equipment, crushing & pulverizing equipment, cutting blades, tunneling machines, roller coasters, and much more.

The oval-shaped lock ring resists vibration by clamping perpendicularly about the bolt axis

We offer a wide range of sizes, thread pitches, classes, grades, body styles and coatings suitable for just about any application. If our standard product configurations don't meet your needs, we will work with you to design a custom configuration for your unique application.

Our up-to-date manufacturing facility employs state of the art manufacturing technologies and processes to deliver repeatable quality and the fastest lead times with each and every locknut we produce. Plus, our in-house R&D and engineering efforts continue to push the envelope with materials composition & design to take the performance of our products to new heights.

  • ISO 9001:2008 Certified
  • In-house Application Support
  • In-house Engineering, R&D & Testing
  • New advanced manufacturing facility - 90% of products ship in less than 48 hours
  • Most common sizes in stock & ready to ship same day