Detail & Specs
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Hardened Class 10 / Fine, Extra Fine Thread
Prevailing torque flange nuts prevent against vibration loosening. The design of this all metal lock nut provides resistance when tightened down on a bolt thread. The friction between the threads of the nut and the bolt increases the amount of force needed to tighten (and securely lock) the assembly into place.
This type of all-metal lock nut can have a conical shape with an elliptical deformation or a flat top 3-punch locking design, meant to distort the threads of the mating bolt or screw. The smooth bottom flange acts as a built-in washer to evenly distribute force over a larger area against the fastening surface.
Also known as all metal lock nut, distorted thread hex flange nut, prevailing torque nut, stover flange nut.
Materials & Finishes
Hardened Class 10 metric locking flange nuts provide a high strength, high tensile fastening solution. Commonly paired with Class 10.9 metric bolts and screws.
Zinc Plated and Yellow Zinc Plated finishes provide corrosion resistance without sacrificing strength. Black oxide provides minimal corrosion resistance, best for dry environments.
Zinc flake finishes are water based with a chrome free coating that is anticorrosive and suitable for high temperatures, greater than 572 F. Zinc Flake finishes do not cause hydrogen embrittlement, which makes them suitable for high tensile fasteners. Salt Spray Resistance > 480 hours.
