Top Locking Nuts

Automation-Style Lock Nuts, Top Locking Lock Nuts or Stover Lock Nuts are lock nuts with a locking feature deformed into the top of the nut. This deformation crimps the internal thread, increasing its friction against the mating bolt or stud, leading to the locking feature.

Top Locking Nuts Diameters

Top Locking Nuts are available on the FCH Network with Imperial/US diameters that range from #00 to 6 and with Metric diameters that range from M1 to M60. The length of Top Locking Nuts is usually measured from the point to the underside of the head.

Click on the diameters below to view or Shop All Top Locking Nuts