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 Seachoice 18-8 Stainless Steel Wing Nuts, 1/4-20 Size, Pack of 100 $110.41 Phillips Tapping Screw - Pan Head, #12 x 3/4" $37.60 Stainless Cotter Pin 1/8" x 1" $63.67 Stainless External Tooth Lock Washer 5/16" $19.48 Phillips Tapping Screws - Flat Head, #14 x 3/4" $44.09