Brand: OMP Racing Products
These large-area rectangular backing plates have industry-standard 7/16-20 UNF female threads to accept the Forged Safety Harness Eyebolts (Part No. OMP-DB420/6, sold separately). They are FIA-Approved for mounting driver restraint harnesses with snap-in end plates.
No welding required. Simply drill a 7/16" hole in the floor pan and sandwich the floor between the eyebolt and this plate. Each plate measures 3.3mm Thick x 80mm Long x 50mm Wide (3.15" L x 1.97" W) for a full 4000 square millimeter (6.2 sq in) surface area to resist pulling through a sheet metal floor. Set of 6 plates (will mount one 6-point harness when combined with a set of six eyebolts).