Online Parts Store › Phillips Tapping Screws - Flat Head, #10 x 5/8" Image 1 of 1 Phillips Tapping Screws - Flat Head, #10 x 5/8" $18.83 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Flat Washer, 3/4", .109" Thick, OD 1-7/8" $47.99 Flat Washer, 1/2", .078" Thick, OD 1-3/8" $74.51 Stainless Cotter Pin $169.61 Flat Washer, 5/16", .062" Thick, OD 7/8" $52.44 Flat Washer, 5/16", .062" Thick, OD 7/8" $21.67