Online Parts Store › Phillips Machine Screw - Flat Head, 10-24 x 1/2" Image 1 of 1 Phillips Machine Screw - Flat Head, 10-24 x 1/2" $19.27 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #10 x 1" $29.03 Phillips Wood Screw - Flat Head, #10 x 2" $44.47 Stainless Fender Washer 3/8", .078" Thick, OD 1-1/2" $54.73 Phillips Tapping Screws - Flat Head, #14 x 2" $41.13 Square Tapping Screw - Oval Head #8 x 3/4" $25.25