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 Phillips Tapping Screws - Oval Head, #10 x 3" $32.37 Stainless Fender Washer 3/8", .078" Thick, OD 1-1/2" $54.73 Stainless External Tooth Lock Washer 1/4" $19.78 Stainless Fender Washer #6, .050" Thick, OD 3/4" $19.71 Phillips Tapping Screw - Truss Head #8 x 1-1/4" $39.30