JOHN DEERE – JDS 117
Specification for Electroplated Zinc & Zinc Cobalt Coatings
JDS 117 specifies requirements for electroplated coatings of zinc and of zinc cobalt alloy on ferrous parts for protection against corrosion. JDS 117 does not apply to coatings applied to sheet, strip or wire in the unfabricated form, or to coil springs. It does not specify the surface condition of the base metal prior to coating, coating allowances (if any) for threaded parts, or thread limits either before or after coating (See 3.1).