Online Parts Store › Phillips Tapping Screw - Truss Head #8 x 1/2" Image 1 of 1 Phillips Tapping Screw - Truss Head #8 x 1/2" $18.52 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #10 x 2" $27.33 Nylon Flat Washer #10, 0.32" Thick, OD 7/16" $17.32 Phillips Tapping Screws - Flat Head, #14 x 1-1/2" $28.97 Stainless Cotter Pin 1/16" x 3/4" $17.76 Stainless Fender Washer #10, .062" Thick, OD 1" $48.06