Online Parts Store › Phillips Tapping Screws - Flat Head, #12 x 2-1/2" Image 1 of 1 Phillips Tapping Screws - Flat Head, #12 x 2-1/2" $41.63 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Tee Nut - Stainless 5/16"-18 $26.64 Seachoice 01013 Lock Washer, 3/8" $58.45 Stainless Cotter Pin 5/32" x 2" $84.08 Nylon Flat Washer #10, 0.32" Thick, OD 7/16" $17.32 Flat Washer, #10, .050" Thick, OD 9/16 $16.12