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 Nylon Insert Locknut - Stainless 12-24 $75.96 Phillips Tapping Screw - Truss Head #10 x 1-1/4" $50.76 Phillips Tapping Screws - Flat Head, #6 x 1" $11.21 Phillips Tapping Screw - Pan Head, #8 x 1/2" $13.86 Flat Washer, 3/8", .062" Thick, OD 5/8" (A/N Style) $11.46