Amazon.com: 1/2 in. Forged Cargo D-Ring Anchor : Automotive
D Ring Tie-Down Anchors (Large Square), Recessed Pan Fitting DRings Heavy Duty Steel Cargo Tie Downs by DC Cargo Mall, Truck/Trailer/Flatbed/Pickup TieDown Anchor" - Walmart.com
3M™ DBI-SALA® D-ring Anchorage Plate 2101636 | 3M United States