Online Parts Store › Phillips Tapping Screws - Flat Head, #6 x 3/4" Image 1 of 1 Phillips Tapping Screws - Flat Head, #6 x 3/4" $10.33 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #12 x 2" $30.67 Nylon Flat Washer 1/2", 0.62" Thick, OD 1-1/4" $36.72 Flat Washer, #12, .050" Thick, OD 1/2" $15.75 Stainless Countersunk Finishing Washer, #5/16 $22.42 Phillips Tapping Screw - Pan Head, #8 x 3/8" $12.60