Online Parts Store › Phillips Tapping Screws - Flat Head, #4 x 3/4" Image 1 of 1 Phillips Tapping Screws - Flat Head, #4 x 3/4" $13.73 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #14 x 1-1/4" $33.19 Stainless Countersunk Finishing Washer, #1/4 $21.92 Stainless Countersunk Finishing Washer, #4 $13.29 Stainless Cotter Pin $169.61 Nylon Flat Washer #8, 0.32" Thick, OD 3/8" $16.50