Online Parts Store › Phillips Machine Screw - Pan Head. 1/4"-20 x 6" Image 1 of 1 Phillips Machine Screw - Pan Head. 1/4"-20 x 6" $31.90 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #14 x 3/4" $49.38 Lock Washer, M4 $10.20 Square Tapping Screw - Flat Head,#10 x 1-1/4" $48.20 Stainless Cotter Pin 5/32" x 1" $51.08 Flat Washer, 1/2", .078" Thick, OD 1-3/8" $74.51