Online Parts Store › Stainless Countersunk Finishing Washer, #10 Image 1 of 1 Stainless Countersunk Finishing Washer, #10 $14.99 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #10 x 1" $29.03 Phillips Tapping Screws - Oval Head, #12 x 1-1/2" $30.55 Lock Washer,1/2" $24.75 Phillips Tapping Screw - Pan Head, #12 x 1-1/4" $23.49 Stainless Countersunk Finishing Washer, #5/16 $22.42