Online Parts Store › Flat Washer, #8, .032" Thick, OD 3/8" Image 1 of 1 Flat Washer, #8, .032" Thick, OD 3/8" $5.42 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Flat Washer, #4, .032" Thick, OD 5/16" $6.74 Flat Washer, 3/8", .062" Thick, OD 5/8" (A/N Style) $11.46 Stainless Countersunk Finishing Washer, #4 $13.29 Square Tapping Screw - Oval Head #8 x 1-1/2" $54.12 Lag Screw, 3/8 x 1-1/2" $63.91