Online Parts Store › Flat Washer, 1/2", .078" Thick, OD 1-3/8" Image 1 of 1 Flat Washer, 1/2", .078" Thick, OD 1-3/8" $74.51 Hot Dipped Galvanized. Add To Cart Added! Hot Dipped Galvanized. You Might Also Like Phillips Tapping Screw - Truss Head #8 x 1-1/2" $63.30 Phillips Tapping Screw - Pan Head, #10 x 3/4" $32.06 Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) $10.20 Flat Washer, #10, .050" Thick, OD 9/16 $16.12 Phillips Tapping Screw - Pan Head, #10 x 1-1/2" $36.40