Ours were developed 40 years ago my Bill Martin for Snap-On. Plus these can be removed if you relocate.
6 Heavy Duty Cast Steel Floor Anchor Pots USA Made Auto Body Frame Tie Down Pot
(4) Heavy Duty Cast Steel Floor Anchor Pots-USA Made Auto Body Frame Tie Downs
(2 Pack) Heavy Duty Cast Iron Air Brake Glad Hand Lock For Tractor Trailer
LUMAX LX-1160 Deluxe Air Operated Single Shot Grease Gun. Heavy Duty cast Head
(4) Heavy Duty Cast Steel Floor Anchor Pots- USA Made Auto Body Frame Tie Downs