3M DBI/SALA manufactures the industry's widest range of anchorage connectors, combining ease of use, light weight and high strength. The D-ring anchorage plate offers a compact, reliable connection point for your fall protection system. Can be bolted or welded to structure. Two 1/2" diameter attachment holes. Stainless steel construction for durability. Plate size: 1/4" x 2" x 4-1/4". Meets or exceeds all applicable industry standards including OSHA, ANSI and the stringent ANSI Z359. Sold by the each.