Online Parts Store › Phillips Tapping Screws - Flat Head, #8 x 1" Image 1 of 1 Phillips Tapping Screws - Flat Head, #8 x 1" $18.01 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Flat Washer, 7/16", .062" Thick, OD 1-1/8" $27.80 Seachoice 18-8 Stainless Steel Wing Nuts, 5/16-18 Size, Pack of 50 $101.59 Phillips Tapping Screws - Flat Head, #12 x 2-1/2" $41.63 Nylon Insert Locknut - Stainless 12-24 $75.96 Stainless Fender Washer #10, .050" Thick, OD 3/4" $18.58