What are you tying down and how are you doing it?
Most 'toys' have suspensions and you just use the straps to compress the suspension a bit and that's it. No wratched type straps needed as they can exert way too much force.
I've got a cargo trailer that I put rails on the walls and used self tapping screws into the frame of the trailer (not much thicker than sheet metal). They're only 1/4" screws. I've got some wratchet type straps as i've got to hold heavy cargo still and and I can dent a wolmanized 2x12 and the screws don't pull out.
This is the 'fancy' aircraft style tie down rails
AnchorTrax Truck Bed and Trailer Cargo Control System w/ Sliding Tie-Downs - 1' Long AnchorTrax Trailer Cargo Control,Truck Bed Accessories AT3375
I went with E-track - lots of options and choice for securing loads, making shelves and more. Harbor Freight, Grainger and others have it too.
E-Track Strips, Straps & Accessories at Trailer Parts Superstore