本文件规定了钢紧固件非电解锌片涂层系统的要求。适用于以下涂料: -有或没有六价铬； -有无面漆； -有或没有润滑剂（整体润滑剂和/或随后添加的润滑剂）。 适用于ISO公制螺纹的螺栓、螺钉、螺柱和螺母，非ISO公制螺纹的紧固件，以及垫圈、销、夹子等非螺纹紧固件。 本文件未规定可焊接性或可涂漆性等紧固件性能的要求。不适用于机械镀锌涂层。 注:本文件规定的涂层尤其适用于高强度紧固件(≥ 1 000 MPa），以避免内部氢脆风险（IHE-见4.4）。 附件A中给出了涂层紧固件的设计和组装信息。

This document specifies requirements for non-electrolytically applied zinc flake coating systems for steel fasteners. It is applicable to coatings: — with or without hexavalent chromium; — with or without top coat; — with or without lubricant (integral lubricant and/or subsequently added lubricant). It is applicable to bolts, screws, studs and nuts with ISO metric thread, to fasteners with non-ISO metric thread, and to non-threaded fasteners such as washers, pins, clips, etc. This document does not specify requirements for such fastener properties as weldability or paintability. It is not applicable to mechanically applied zinc coatings. NOTE Coatings in accordance with this document are especially used for high strength fasteners (≥ 1 000 MPa) to avoid risk of internal hydrogen embrittlement (IHE — see 4.4). Information for design and assembly of coated fasteners is given in Annex A.