Online Parts Store › Phillips Tapping Screws - Flat Head, #12 x 3" Image 1 of 1 Phillips Tapping Screws - Flat Head, #12 x 3" $42.89 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #8 x 1/2" $12.41 Phillips Tapping Screws - Oval Head, #10 x 2-1/2" $29.85 Stainless External Tooth Lock Washer 5/16" $19.48 Nylon Insert Locknut - Stainless 10-32 $25.51 Square Tapping Screw - Oval Head #8 x 1-1/2" $54.12