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 Flat Washer, 5/8", .078" Thick, OD 1-1/2" $22.42 Square Tapping Screw - Flat Head,#12 x 2" $49.38 Phillips Tapping Screw - Pan Head, #8 x 1-1/2" $25.70 Phillips Tapping Screws - Flat Head, #14 x 2-1/2" $57.69 Stainless Cotter Pin 1/16" x 1/2" $9.76