PHOSPHATE COATING, HEAVY, MANGANESE OR ZINC BASE
This specification covers two types of heavy phosphate coating for ferrous metals, applied by immersion. The coatings consist of a manganese phosphate or zinc phosphate base and, when specified, a supplementary treatment (see 6.1).

Check out other specifications
Conical spring washers for bolt/nut assemblies
Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels
Hexagon thin slotted nuts and castle nuts with metric coarse and fine pitch thread Product grades A and B
Steel rod, bars and wire for cold heading and cold extrusion Part 2: Technical delivery conditions for steels not intended for heat treatment after cold working – English version of DIN EN 10263-2
Bolts, Screws, Nuts and Similar Threaded and Formed Parts – Technical Conditions of Delivery – Self-Tapping Screws