Online Parts Store › Phillips Tapping Screws - Flat Head, #8 x 1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #8 x 1/2" $12.41 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #10 x 1-3/4" $26.77 Phillips Tapping Screw - Truss Head #10 x 3/4" $31.18 Stainless Fender Washer 1/4", .062" Thick ,OD 1" $39.24 Flat Washer, 7/16", .062" Thick, OD 1-1/8" $27.80 Phillips Tapping Screw - Truss Head #8 x 1" $30.99