Electroplated coatings of zinc on steel fasteners with imperial threads
英制螺纹钢紧固件镀锌层
发布日期:
2007-03-08
规定了通过滚镀或其他技术在带英制螺纹(UNC、UNF、BSW和BSF)的紧固件上施涂锌镀层的要求。
Specifies the requirements for electroplated coatings of zinc, applied either by barrel plating or other techniques, on fasteners with imperial threads (the UNC, UNF, BSW and BSF).