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 Seachoice 01013 Lock Washer, 3/8" $58.45 Phillips Tapping Screw - Pan Head, #12 x 1-1/4" $23.49 Phillips Tapping Screws - Oval Head, #12 x 1" $45.16 Nylon Insert Locknut - Stainless 7/16-14 $21.10 Stainless Countersunk Finishing Washer, #12 $18.89