Online Parts Store › Phillips Machine Screw - Oval Head, 1/4"-20 x 4" Image 1 of 1 Phillips Machine Screw - Oval Head, 1/4"-20 x 4" $55.86 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Fender Washer 5/8", .109" Thick, OD 2" $37.03 Nylon Insert Locknut - Stainless 5/8-11 $35.08 Phillips Tapping Screw - Pan Head, #8 x 1/2" $13.86 Stainless Cotter Pin 5/32" x 2" $84.08 Phillips Tapping Screw - Truss Head #10 x 1-1/4" $50.76