Online Parts Store › Phillips Tapping Screws - Flat Head, #6 x 3/8" Image 1 of 1 Phillips Tapping Screws - Flat Head, #6 x 3/8" $9.01 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #14 x 1" $45.79 Flat Washer, 1/4", .050" Thick, OD 1/2" (A/N Style) $11.46 Phillips Tapping Screw - Pan Head, #14 x 1" $55.11 Stainless Countersunk Finishing Washer, #4 $13.29 Fasteners Only (Boxed) $6,706.34