Online Parts Store › Phillips Machine Screw - Oval Head, 1/4"-20 x 2-1/2" Image 1 of 1 Phillips Machine Screw - Oval Head, 1/4"-20 x 2-1/2" $28.66 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #8 x 2" $19.02 Phillips Tapping Screws - Flat Head, #4 x 3/4" $13.73 Phillips Tapping Screw - Truss Head #10 x 1-1/4" $50.76 Stainless Fender Washer 3/8", .078" Thick, OD 1-1/2" $54.73 Phillips Tapping Screw - Truss Head #10 x 1" $33.32