Online Parts Store › Phillips Tapping Screws - Flat Head, #10 x 1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #10 x 1/2" $18.08 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Nylon Insert Locknut - Stainless 5/16-24 $46.35 Blind Rivet, 1/8" x 1/4" $43.39 Stainless Countersunk Finishing Washer, #12 $18.89 Phillips Tapping Screw - Pan Head, #14 x 1-1/4" $33.19 Phillips Tapping Screws - Oval Head, #12 x 3/4" $33.07