Washers for Your Testing Needs

Wilson-Garner stocks hardened and non-hardened square test washers for torque-tension and bearing surface tests on locknuts, coatings, and adhesive patches. All our products are certified and completely traceable by lot. Certifications include material, property class and surface treatment. We can provide washers for a variety of specifications, including tests from Ford, General Motors, Chrysler, John Deere, and ISO 16047. We sell test bolts and test nuts for these specs as well. You can click on a button below to get more information about specifications from each company. All of the washers we sell are made in America.

Test Washers for Torque-Tension Testing from Wilson-Garner Company
General Motors

Metric Washer Stock Sizes

Sizes Finish
M6 thru M24 Plain or Zinc Plated

Customary Washer Stock Sizes

Sizes Finish
1/4″ thru 1″ Plain or Zinc Plated