A locknut, also known as a lock nut, locking nut, self-locking nut, prevailing torque nut, [1] stiff nut[1] or elastic stop nut, [2] is a nut that resists loosening under vibrations and torque. …

Dec 18, 2025 · A locknut, often referred to as a self-locking nut, is a specialized type of fastener engineered to resist loosening when exposed to external forces like vibration, thermal cycling, …

Mar 13, 2025 · The locknut is also called a lock nut, locking nut, or prevailing torque nut. It is a nut that shows resistance for loosening if high pressure and torque are applied.

Choose from our selection of locknuts, including over 7,300 products in a wide range of styles and sizes. Same and Next Day Delivery.

Oct 24, 2023 · There are essentially two lock-nut types: Lock nuts which use friction are designed with pitted or flanged grooves and need greater torque to tighten and loosen. They don’t spin …

Feb 10, 2025 · Locknuts are a type of prevailing-torque fastener that resists loosening under vibration and torque. They differ from standard nuts because they typically have friction …

For more than four decades, STS Industrial has supplied high-quality lock nuts to industries where safety, reliability, and performance cannot be compromised.

This proven design is the ultimate all-metal locknut with the highest resistance to loosening of any reusable one piece nut. It works by allowing the crimped slotted top section to expand and grip …

May 30, 2025 · Lock nuts are specialized fasteners designed to prevent loosening caused by vibration or torque, making them essential in various mechanical and industrial applications. …

May 17, 2024 · What is the Locking Nut? The locking nut, also known as a: nut with lock, locknut, lock nut, self-locking nut, stiff nut or prevailing torque nut, is a specially designed nut that is a …