locknut

Nut resisting vibration

A locknut is a nut designed to resist loosening from vibration or torque.

Some locknuts use a nylon insert that grips the bolt threads; others are deformed or slotted to create friction.

A second nut tightened against the first—called a jam nut—serves the same purpose: Tighten the locknut against the adjustment nut to hold the setting.

fastening

bolt

Threaded rod for nuts

clamp · torque · wrench · tighten · secure · anchor · retainer · prevailing · jam · castle

hardware

hex

Malevolent incantation

  • flangeProjecting attachment rim
  • nylonSynthetic textile polymer
  • serratedHaving toothlike projections

slotted · cotter · castle · collar · insert · bearing · bushing · spacer · grommet · sleeve

application

vibration

Rapid oscillating movement

automotive · aerospace · assembly · joint · axle · spindle · hub · wheel · suspension · brake

Categories
Opposites
fastener security

locknutwing nut

Flanged fastener for fingers

hex nut

Family

nut, lock, locked, unlock, locker, walnut, padlock, unlocked, locking

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G