Online Parts Store › Phillips Machine Screw - Flat Head, 10-24 x 3/4" Image 1 of 1 Phillips Machine Screw - Flat Head, 10-24 x 3/4" $21.04 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #8 x 1/2" $12.41 Nylon Insert Locknut - Stainless 5/16-24 $46.35 Lag Screw, 3/8 x 3" $41.46 Flat Washer, #8, .032" Thick, OD 3/8" $5.42 Phillips Tapping Screws - Flat Head, #14 x 1" $45.79