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 Seachoice 01009 Lock Washer, 1/4" $13.60 Phillips Tapping Screws - Oval Head, #10 x 5/8" $28.59 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 3/4" $17.19