Our Hardened Steel Insert Washers are made in-house, and used in all our Torque Plate products. 1018/1020 steel precision turned and FPC Hard Nitride coated.

7/16” or 11mm Insert Washers have a 15/32″ (11.9mm) ID, 17/32″ Press Fit diameter (+0.001/+0.003″), and 0.77″ Top Step diameter.  Press register is 0.225″ tall and top step is 0.125″ tall.