Online Parts Store › Phillips Machine Screw - Pan Head. 1/4"-20 x 4" Image 1 of 1 Phillips Machine Screw - Pan Head. 1/4"-20 x 4" $58.13 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #14 x 3" $59.58 Stainless Fender Washer 3/8", .078" Thick, OD 1-1/2" $54.73 Square Tapping Screw - Flat Head,#8 x 1" $27.12 Stainless Countersunk Finishing Washer, #12 $18.89 Stainless Cotter Pin 5/32" x 1-1/2" $64.12