Online Parts Store › Phillips Tapping Screws - Oval Head, #10 x 1/2" Image 1 of 1 Phillips Tapping Screws - Oval Head, #10 x 1/2" $24.75 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Fender Washer 1/4", .062" Thick, OD 1-1/2 $103.98 Phillips Tapping Screw - Pan Head, #10 x 1-1/4" $32.56 Phillips Tapping Screws - Flat Head, #6 x 1-1/2" $16.94 Nylon Insert Locknut - Stainless 3/4-10 $53.60 Flat Washer, 1/2", .078" Thick, OD 1-3/8" $74.51