1.1本规范涵盖一般用途的软、中、硬回火镀锌碳素钢丝。 1.2本规范的补充要求涵盖用于切割和形成钉子和订书钉的钉子、订书钉和钢丝的镀锌重量[质量]。 1.3本规范适用于英寸-磅单位（641）或国际单位制（641M）的订单。以英寸-磅单位或国际单位表示的数值应单独视为标准。在文本中，国际单位显示在括号中。两个系统中所述的值并非完全等效；因此，每个系统应独立使用，不得以任何方式组合值。 1.4本规范和一些参考规范均以英寸-磅和国际单位制表示。如果订单规定了适用的“M”规格名称，则产品应提供给国际单位制。 1.5本规范的文本引用了提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本规范的要求。

1.1 This specification covers soft, medium, and hard temper zinc-coated (galvanized) carbon steel wire in coils for general use. 1.2 The supplementary requirements of this specification cover zinc-coated weights [masses] for nails, staples, and wire from which nails and staples are cut and formed. 1.3 This specification is applicable to orders in either inch-pound units (as A 641) or SI units (as A 641M). Values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in the two systems are not exact equivalents; therefore, each system shall be used independent of the other, without combining values in any way. 1.4 This specification and some referenced specifications are expressed in both inch-pound and SI units. If the order specifies the applicable "M" specification designation, the product shall be furnished to SI units. 1.5 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.