Online Parts Store › Phillips Tapping Screws - Flat Head, #10 x 4" Image 1 of 1 Phillips Tapping Screws - Flat Head, #10 x 4" $43.96 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Fender Washer 5/16", .078" Thick, OD 1-1/2 $54.04 Phillips Tapping Screw - Truss Head #8 x 1" $30.99 Lock Washer, M4 $10.20 Square Tapping Screw - Oval Head #10 x 1-1/4" $57.05 Phillips Tapping Screw - Pan Head, #14 x 2" $45.91