Online Parts Store › Phillips Tapping Screws - Flat Head, #8 x 5/8" Image 1 of 1 Phillips Tapping Screws - Flat Head, #8 x 5/8" $12.41 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Flat Washer, #10, .050" Thick, OD 7/16 $13.35 Stainless Fender Washer #10, .050" Thick, OD 3/4" $18.58 Phillips Tapping Screws - Flat Head, #14 x 3/4" $44.09 Phillips Tapping Screw - Pan Head, #10 x 1-1/4" $32.56 Phillips Tapping Screw - Truss Head #10 x 1" $33.32