Online Parts Store › Phillips Machine Screw - Flat Head, 1/4"-20 x 1-3/4" Image 1 of 1 Phillips Machine Screw - Flat Head, 1/4"-20 x 1-3/4" $40.62 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Countersunk Finishing Washer, #4 $13.29 Stainless Countersunk Finishing Washer, #5/16 $22.42 Stainless External Tooth Lock Washer 5/16" $19.48 Phillips Tapping Screw - Pan Head, #14 x 1-1/4" $33.19 Nylon Flat Washer 5/16", 0.62" Thick, OD 7/8" $37.54