Online Parts Store › Stainless Countersunk Finishing Washer, #1/4 Image 1 of 1 Stainless Countersunk Finishing Washer, #1/4 $21.92 316 Stainless Steel. Add To Cart Added! 316 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #8 x 1-1/2" $25.70 Phillips Tapping Screw - Truss Head #10 x 1" $33.32 Square Tapping Screw - Flat Head,#8 x 1" $27.12 Flat Washer, 3/8", .062" Thick, OD 5/8" (A/N Style) $11.46 Tee Nut - Stainless 5/16"-18 $26.64