Online Parts Store › Phillips Tapping Screws - Flat Head, #6 x 1-1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #6 x 1-1/2" $16.94 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #14 x 2" $41.13 Phillips Tapping Screws - Flat Head, #8 x 5/8" $12.41 Stainless External Tooth Lock Washer #10 $14.42 Blind Rivet, 1/8" x 1/2" $71.23 Phillips Tapping Screw - Truss Head #10 x 1" $33.32