McGard

Innovative Security Products

Worldwide Commitment


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What makes McGard lug nuts better?

McGard Tough Nuts are designed to last for life. No chipping, peeling or rusting. Guaranteed to keep on shining for years. Our Tough Nuts are manufactured in the U.S.A. to meet the highest O.E.M. standards for safety and durability. They’re triple-nickel chrome plated for lasting beauty by our experienced staff using our own in-house plating technology. Every one is backed by a written lifetime guarantee. Compare our features and performance to our competition’s product, or just ask our customers. You’ll see why more people choose McGard.

  1. Identification
    In addition to the thread size and part number, we roll mark our name into the surface of every Tough Nut. This is your assurance that you are getting McGard quality and safety.
     
  2. Through-Hardened Steel Construction
    Every lug nut is through-hardened and tempered, reaching the depth of hardness needed for its unsurpassed level of safety (unlike case hardening which is only a surface treatment).
     
  3. Precise Bearing Surfaces
    McGard’s standard for concentricity of the bearing surface to the pitch diameter is 30% more precise than OEM standards. This insures even distribution of the clamp load and uniform seating of the lug nut to the wheel.
     
  4. Restricted Chemistry Steel
    We use only restricted chemistry steel for our fully machined lug nuts. This steel is made specifically for McGard. Our special standards insure the structural integrity of each and every McGard lug nut.
     
  5. The Best Chrome Plating In the Industry
    The best in the industry. Our process includes three layers of nickel and one layer of microporous chrome. The first layer of nickel is for corrosion resistance; the second layer of nickel is for luster and the third nickel layer interacts with the microporous chrome layer to disperse nature’s corrosive action (rust).
     
  6. Precision threads
    Core integrity and precision machining provide the highest strength in the industry. All McGard locks and lug nuts meet or exceed the highest OEM proof load standards, 135,000 to 160,000 PSI.

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