L-Track Fastener Pack | 1-1/2" Bolt with Nut & Washer | 10-Pack

Hope they hold

I am not an engineer, the quality of these fasteners seems nice and plenty long enough for bolting through different things. I rated 4 stars since I am mounting to the sheet metal bed of a truck and the small washer doesn’t make me feel like it won’t pull through if you actually loaded the rail with 4k lbs of pressure. I am hopeful.

All came in as expected

Things to be aware of

Didn't realize the 72" rails have 15 holes per side as only purchased one package of nuts and bolts which included flat washers only. Luckily my local Ace hardware had the exact same ss bolts and lock washers which I used when installing.