I am looking for a self tapping bolt head type in Stainless steel, must be 1-1/2 in. long. I dont know what number to use, This will screw down my 3/4 plywood to the top curl on my bow section. I went to Lowes today but did not see them and of course when you need someone, nobodys around, My saciatia was acting up so bad I would of probably flipped out on someone any ways, pain is that bad, now I figure just buy them on line, There is a Fastenal by us, maybe I should just go there