Online Parts Store › Phillips Machine Screw - Oval Head, 1/4"-20 x 1-1/2" Image 1 of 1 Phillips Machine Screw - Oval Head, 1/4"-20 x 1-1/2" $34.07 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Countersunk Finishing Washer, #10 $14.99 Phillips Tapping Screws - Oval Head, #12 x 3/4" $33.07 Phillips Tapping Screws - Flat Head, #6 x 3/8" $9.01 Phillips Tapping Screws - Flat Head, #6 x 1" $11.21 Square Tapping Screw - Oval Head #8 x 1" $32.17