Online Parts Store › Stainless Countersunk Finishing Washer, #12 Image 1 of 1 Stainless Countersunk Finishing Washer, #12 $18.89 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #12 x 2" $30.36 Phillips Tapping Screw - Pan Head, #12 x 1" $40.94 Phillips Tapping Screw - Pan Head, #8 x 5/8" $18.01 Phillips Tapping Screw - Pan Head, #10 x 1-3/4" $26.26 Square Tapping Screw - Oval Head #8 x 1" $32.17