Online Parts Store › Phillips Machine Screw - Flat Head, 1/4"-20 x 2" Image 1 of 1 Phillips Machine Screw - Flat Head, 1/4"-20 x 2" $40.69 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Fender Washer 3/8", .078" Thick, OD 1-1/2" $54.73 Nylon Flat Washer #6, 0.32" Thick, OD 3/8" $17.45 Phillips Tapping Screws - Flat Head, #6 x 3/4" $10.33 Phillips Tapping Screw - Truss Head #8 x 1/2" $18.52 Phillips Tapping Screws - Oval Head, #12 x 3/4" $33.07