Online Parts Store › Phillips Tapping Screws - Flat Head, #14 x 2-1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #14 x 2-1/2" $57.69 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Nylon Flat Washer #10, 0.32" Thick, OD 7/16" $17.32 Nylon Insert Locknut - Stainless 1/4-20 $27.84 Stainless Countersunk Finishing Washer, #12 $18.89 Seachoice 01009 Lock Washer, 1/4" $13.60 Stainless Countersunk Finishing Washer, #1/4 $21.92