I'm spiffin' up my trailer and I'm sick and tired of fooling around with these other methods of strapping down my Z. It's time consuming and doesn't keep my mower in place. I've had enough. So I bought a set of Fastraps and I hope they are quick. But most of all I just hope they keep the dang thing still. So anyways they are here. I opened one up and I'm pleased so far with the design and quality. But I was expecting some REAL HARDWARE. I got screws? My Z is not real heavy and my trailer floor is good and strong. But screws? Maybe they hold stronger than I think? Or should I run out and get some bolts? I'm thinking bolts. Plus I'm thinking of maybe some 2x4's underneath and big, thick and strong fender washers. Yes or am I thinking of over doing it? Are the screws sufficient?