Online Parts Store › Phillips Machine Screw - Pan Head. 1/4"-20 x 5/8" Image 1 of 1 Phillips Machine Screw - Pan Head. 1/4"-20 x 5/8" $51.33 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Cotter Pin 5/32" x 2" $84.08 Flat Washer, 3/8", .062" Thick, OD 1" $38.36 Nylon Insert Locknut - Stainless 7/16-14 $21.10 Stainless External Tooth Lock Washer #10 $14.42 Phillips Tapping Screw - Pan Head, #8 x 1-1/2" $25.70