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 Screws - Oval Head, #10 x 1-1/4" $28.85 Phillips Tapping Screws - Flat Head, #14 x 2-1/2" $57.69 Flat Washer, 3/8", .062" Thick, OD 5/8" (A/N Style) $11.46 Phillips Tapping Screw - Pan Head, #12 x 1-1/2" $30.92 Flat Washer, #10, .050" Thick, OD 7/16 $13.35