Bruno Wessel | TSMI #12 Road Grip Steel Passenger and Light Truck Tire Studs (TSMI-12)

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Bruno Wessel TSMI #12 Road Grip Steel Passenger and Light Truck Tire Studs

Tire studs increase tire friction on icy surfaces enabling drivers to stop sooner, accelerate quicker, and maintain control on turns.

Tire Studs consists of an outer jacket of steel or aluminum and a tungsten carbide pin that provides the traction. On passenger tire studs, this tungsten pin is 1mm in diameter and protrudes approximately 1mm from the top of the stud.

Many brands of winter tires have pre-molded holes designed to accept tire studs. Bruno Wessel recommends that only new tires be studded as previously driven tires have stud holes that are plugged with dirt and can not be studded properly.

Each passenger tire is designed to accept from 80 – 120 tire studs depending on the tire diameter and hole pattern. Larger diameter truck tires generally require more studs.

In North America, tire studs are sized by a TSMI number. Passenger tires and light truck tires use either TSMI #11, TSMI #12, TSMI #13, TSMI #15, TSMI #16 or TSMI #17 size studs. Many tire manufacturers indicate on the tire sidewall the correct TSMI number stud to use. If it is not indicated, then the service center must measure the stud hole depth and match it to the body length to determine the correct stud for that tire.

Please be advised that laws governing the use of tire studs can vary from state to state and can change at any time.

Please consult your local highway transportation department for the most current legislation pertaining to the use of tire studs.


  • Article Number: 5900920
  • Metric Designation: TSC 8.8 – 11/1
  • Body Length: 10 mm
  • Overall Length: 11 mm
  • Base Diameter: 8.8 mm
  • Shaft Diameter: 4.8 mm
  • Pin Diameter: 2.4 mm
  • Weight: 2.02 gm
  • Color: Silver
  • Quantity Per Box: 1000 Studs

    Compliance and Restrictions
    ⚠️WARNING: Cancer and Reproductive Harm -

    Customer Reviews

    Based on 5 reviews

    Bruno Wessel TSMI #12 Road Grip Steel Passenger and Light Truck Tire Studs

    Raymond Laurinaitis
    Bruno Wessel TSMI #12

    These tire studs showed up super fast. One set of 4 tires have been studded. They installed good. I haven’t run the tires long enough yet to see how they hold up, but the quality looks good so i am optimistic they will hold up just fine

    James Hallahan
    B+w Tire studs

    I only trust bruno wessel steel tire studs - don’t want knock off aluminum ones though I can get smaller than size 11 that b+w don’t seem to offer. I love that they are made in Finland and not china.I don’t want to support the rights crushing CCP

    Shawn Tol

    They came to me package realy good. They installed good. I have 500 miles on them and they still look new.

    Nicholas Evancho

    Bruno Wessel TSMI #12 Road Grip Steel Passenger and Light Truck Tire Studs

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