Looking for the Best Method to install your Perimeter Dock & Post Bumpers? Whether your using the fold-over or Top of the Dock installation methods, we recommend stainless steel fasteners and finishing washers through each tab, spaced every 3-4". SS8125 - #8 SS 1.25" long Phillips Screw 100pk. SSW8 - #8 SS Finishing washers 100pk. #96031 - SS screw & Washer 60pk.