Flange Lock Nuts

Non-Serrated Flange Lock Nuts, or simply Flange Lock Nuts, have a wide flange at one end. The flange distributes the tightening torque over a wider area, but the locking function is provided by some other feature such as top-lock, center-lock, nylon insert.

Flange Lock Nuts Diameters

Flange Lock Nuts are available on the FCH Network with Imperial/US diameters that range from #1 to 6 and with Metric diameters that range from M3 to M30. The length of Flange Lock Nuts is usually measured from the point to the underside of the head.

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