I agree with FISHFORPIKE, mostly, ha. I used 3/8" X #8 Hex head stainless steel sheet metal screws. I also marked a 1/16" dill bit with masking tape, to limit the pilot hole to 1/4". That helps the screws go in straight. Puttin' 'em in with a 5/16" socket makes it caveman easy.
Walkin' is difficult, but can be learned, I will never do more than a short-step walk. Driving is a no-no.