Schroth Harness Hardware Washers is built for track and competition cockpit setups where shell design, driver containment, mounting compatibility, and approval details matter. Review the preserved manufacturer specifications below for sizing, construction, homologation, and mounting notes before purchase.

PMB Performance added this context so customers can compare the seat against their chassis, brackets, harness setup, and intended use without removing the original manufacturer graphics or specs.

Schroth Harness Washers

If you are using a bolt-in harness bracket, you will want to use the corresponding sleeves to allow that bracket to pivot. These are the washers you'll need to finish the setup.

Schroth Washer Hole Sizes:

• SR S82: 7/16"
• SR S83: 3/8" (M10)
• SR S86: 5/16" (M8)