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 Phillips Tapping Screws - Flat Head, #4 x 3/4" $13.73 Flat Washer, #10, .050" Thick, OD 9/16 $16.12 Phillips Tapping Screw - Truss Head #10 x 1-1/4" $50.76 Stainless Cotter Pin 1/8" x 1-1/2" $55.55 Phillips Tapping Screws - Oval Head, #10 x 5/8" $28.59