Online Parts Store › Phillips Tapping Screws - Flat Head, #10 x 1-1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #10 x 1-1/2" $30.86 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Seachoice 18-8 Stainless Steel Wing Nuts, 5/16-18 Size, Pack of 50 $101.59 Seachoice 18-8 Stainless Steel Wing Nuts, 1/4-20 Size, Pack of 100 $110.41 Stainless Fender Washer 1/4", .062" Thick, OD 1-1/2 $103.98 Flat Washer, 1/4", .050" Thick, OD 11/16" $17.26 Phillips Tapping Screws - Flat Head, #6 x 3/8" $9.01