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 Nylon Flat Washer #6, 0.32" Thick, OD 3/8" $17.45 Nylon Insert Locknut - Stainless 1/4-20 $27.84 Phillips Tapping Screw - Pan Head, #12 x 2" $30.36 Stainless Cotter Pin 1/8" x 1-1/4" $65.75 Phillips Self Drilling Screw - Pan Head #10 x 1" $41.63