Online Parts Store › Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) Image 1 of 1 Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) $10.20 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Fender Washer #6, .050" Thick, OD 3/4" $19.71 Phillips Tapping Screws - Flat Head, #14 x 1-1/2" $28.97 Phillips Tapping Screws - Oval Head, #10 x 1-1/2" $36.59 Phillips Tapping Screw - Pan Head, #8 x 2" $19.02 Stainless Countersunk Finishing Washer, #6 $13.10