Trends in Fastener Finishing--Tables Specifications for... ELECTROPLATED FINISHES | MECHANICALLY PLATED FINISHES | DIP-SPIN COATINGS SPECIFICATIONS FOR SOME ELECTROPLATED FINISHES ZINC ELECTROPLATES Manufacturer/Spec Barrel Electroplated Zinc GM Ford Chrysler Plate Thickness (mils) and post treat Salt Spray (Hours) to: Color White Red 4345M 3U ESF-M1P5A PS-79 Code 15 0.2/none -- 24 Silver WSD-M1P85-A1 0.2/clear chromate -- 24 Silver 4345M 6U ESFM1P6A 0.2/clear chromate -- 24/48 Silver ESS-M1P45A 0.2/dichromate 72 72 Yellow PS4220 Code 30 0.3/bake/clear chromate -- 56 Silver WSD-M1P85-A2 0.32/dichromate/lubricant 48 96 Yellow WSD-M1P85-A2 0.32/OD chromate/lubricant 96 144 OD WSD-M1P85-A2 0.32/black chromate/lubricant 48 96 Black 4345M 8U WSD-M1P85-A2 0.32/clear chromate 24 48/72 Silver WSD-M1P85-A2 0.32/chromate/dry-film lube 48 48 Yellow 4345M 8D PS8814 0.3/chromate/JS500 0/96 500 Silver ESE-M21P17-A2 0.3/chromate/JS500 -- 96 Silver ESE-M21P17-A3 0.3/chromate/JS600 -- 168 Silver ZINC ALLOY ELECTROPLATES Manufacturer/Spec Barrel Electroplated Zinc/Cobalt GM Ford Chrysler Plate Thickness (mils)/pct alloy metal/post treat Salt Spray (Hours) to: Color White Red PS-8955Co C-20 0.2/0.4-1.0/chromate 140 300 Blk/Yelo PS-8955Co C-30 0.3/0.4-1.0/chromate 140 300/400 Blk/Yelo WSH-M1P86-A 0.3/0.3-1.0/chromate -- 240 Yellow 6280 0.3/0.5-0.8/chromate 168 -- Black 6280 0.3/0.5-0.8/chromate 168 -- Yellow Barrel Electroplated Zinc/Iron PS-8955Fe C-20 0.2/0.4-0.6/chromate 140 300 Black PS-8955Fe C-30 0.3/0.4-0.6/chromate 140 400 Black WSF-M1P89-A2 0.32/0.3-0.8/chromate 72 480/552 Blk/Yelo 6280 0.3/0.4-0.8/chromate 240 -- Blk/Yelo Barrel Electroplated Zinc/Nickel PS-8955Ni C-30 0.3/10-15/chromate 300 1000 Bronze 6280 0.3/10-15/chromate 240 -- Bronze WSA-M1P87-A 0.32/6-14/chromate -- 768 Bronze

SPECIFICATIONS FOR SOME MECHANICALLY PLATED FINISHES Manufacturer/Spec Zinc Plating GM Ford Chrysler Plate Thickness (mils) and post treat Salt Spray (Hours) to: Color White Red 4345M 6MU PS-1536 Code 25 0.25 -- 48/56 Silver 4345M 9MU WSD-M1P85-A2 PS-1536 Code 32 0.32 24 48/72 Silver WSD-M1P85-A2 0.32/chromate/lubricant 48 96 Yellow WSD-M1P85-A2 0.32/chromate/lubricant 48 96 Black WSD-M1P85-A2 0.32/chromate or org. Molykote 48 96 Black 4345M 12MU 0.47 -- 96 Silver PS-1536 Code 50 0.5/chromate -- 96 Yellow Zinc Alloy Plating WSD-M1P85-A1 0.4 Zinc/Tin + Lubricant 48 120 Silver PS-8958 Code 40 0.4 Zinc/Tin + Chromate + Seal 120 250 Silver SPECIFICATIONS FOR SOME DIP-SPIN COATINGS Manufacturer/Spec Type of Coating Pretreat/Coating Material Salt Spray (Hours) to: Color GM Ford Chrysler White Red WSD-M21P10-B2 Zinc Phosphate/Organic -- 120 Black 7111M WSD-M21P11-B1 PS-7626 Zinc Phosphate/Proprietary Metal-Flake Coating -- 240/480 Silver WSD-M21P11-B2 Zinc Phosphate/Proprietary Metal-Flake Coating -- 480 Black WSD-M21P11-B4 Zinc Phosphate/Proprietary Organic -- 480 Black WSD-M21P11-B8 Zinc Phosphate/Proprietary Organic -- 1000 Silver/Gray WSA-M21P26-A2 Zinc Plate/Dichromate/ Proprietary Organic -- 1000 Silver/Gray PS-7187 Zn/Ni Plate (0.3 mil) Chromate/Organic 240 500 Black WSB-M21P29-A1 PS-9705 Zinc Plate (0.3 mil) Chromate/Proprietary Organic 240 500 Black ESB-M21P4-A2 Zinc Plate/Chromate/Organic -- 192/360 Silver 6174M Zinc Phosphate/Chromate/Seal -- 168 Black WSD-M21P11-B5 Zinc Phosphate/Proprietary Metal-Flake Coating -- 120 Silver WSD-M21P11-B6 Zinc Phosphate/Proprietary Metal-Flake Coating -- 120 Black 6173M Inorganic proprietary metal-flake coating -- 240 Silver/Black ESA-M21P2-A1,2,3,4 Inorganic proprietary metal-flake coating -- 240/500 Silver/Black WSD-M21P13-A1,2,3,4 Inorganic proprietary metal-flake coating -- 240/500 Silver/Black PS-5873-K Inorganic proprietary metal-flake coating -- 400 Silver/Black PS-9666 Inorganic proprietary metal-flake coating -- 400 Silver/Black PS-9904 Inorganic proprietary metal-flake coating -- 400 Black

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