Online Parts Store › Flat Washer, #12, .050" Thick, OD 1/2" Image 1 of 1 Flat Washer, #12, .050" Thick, OD 1/2" $15.75 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #14 x 1-1/4" $33.19 Flat Washer, #10, .050" Thick, OD 7/16 $13.35 Flat Washer, #6, .032" Thick, OD 3/8" $8.19 Phillips Tapping Screw - Pan Head, #12 x 1" $40.94 Phillips Tapping Screw - Pan Head, #14 x 2" $45.91