Online Parts Store › Phillips Machine Screw - Oval Head, 1/4"-20 x 6" Image 1 of 1 Phillips Machine Screw - Oval Head, 1/4"-20 x 6" $47.93 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Flat Washer, 1/2", .078" Thick, OD 1-1/4" $38.42 Phillips Tapping Screws - Oval Head, #10 x 1-3/4" $26.77 Phillips Tapping Screw - Pan Head, #14 x 2" $45.91 Phillips Tapping Screw - Pan Head, #10 x 1-3/4" $26.26 Nylon Insert Locknut - Stainless 1/4-20 $27.84