Nylon Insert Lock Nuts

Nylon-Insert Lock Nuts, Nyloc Nuts or Elastic Stop Nuts, are locknuts with a nylon or fiber internal collar that increases friction on the screw thread. The screw thread does not cut into the nylon insert, however, the insert deforms elastically over the threads. Since the locking feature can be affected by heat, they are more correctly referred to as “Stop” nuts.

Nylon Insert Lock Nuts Diameters

Nylon Insert Lock Nuts are available on the FCH Network with Imperial/US diameters that range from #0 to 6 and with Metric diameters that range from M2 to M80. The length of Nylon Insert Lock Nuts is usually measured from the point to the underside of the head.

Click on the diameters below to view or Shop All Nylon Insert Lock Nuts