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 Flat Washer, 3/8", .062" Thick, OD 5/8" (A/N Style) $11.46 Phillips Self Drilling Screw - Pan Head #10 x 1" $41.63 Stainless Countersunk Finishing Washer, #6 $13.10 Stainless Cotter Pin 3/32" x 1" $46.14 Phillips Tapping Screws - Oval Head, #12 x 3/4" $33.07