Online Parts Store › Flat Washer, #10, .050" Thick, OD 9/16 Image 1 of 1 Flat Washer, #10, .050" Thick, OD 9/16 $16.12 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Phillips Tapping Screw - Truss Head #8 x 1" $30.99 Lag Screw, 3/8 x 3" $41.46 Flat Washer, #8, .032" Thick, OD 3/8" $5.42 Seachoice 01009 Lock Washer, 1/4" $13.60 Phillips Tapping Screws - Flat Head, #12 x 3" $42.89