1.1 本规范规定了用于制造机械紧固件的碳素和合金钢丝、棒材和棒材的物理、机械和冶金要求的质量保证要求，包括:螺栓、螺母、铆钉、螺钉、垫圈和冷制造的特殊零件。 注1: 钢铁行业使用“质量”一词来表示材料的特性，使其特别适合特定的制造和/或应用，而不是通常意义上的“质量”。 1.2 导线尺寸范围包括0.062至1.375英寸。 1.3 杆尺寸范围通常包括 7. / 32 英寸（0.219）至 47 / 64 英寸（0.734），通常提供 1. / 64 增量（0.0156）。 1.4 条形图尺寸范围包括 3. / 8. 英寸（0.375）至1 1. / 2. 英寸（1.500）。 1.5 超出段落范围的线材、棒材和棒材的尺寸 1.2– 1.4 可通过买方和供应商之间的协议订购。 1.6 提供的材料有多种用途。买方应酌情就制造工艺和成品应用向供应商提出建议。五种应用程序变体是: 冷镦 嵌入式封头 内六角头 无废料螺母 管状铆钉 1.6.1 为所有五种应用变化提供电线。 1.6.2 杆和杆提供给单一的应用变化；冷镦。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification establishes quality assurance requirements for the physical, mechanical, and metallurgical requirements for carbon and alloy steel wire, rods, and bars in coils intended for the manufacture of mechanical fasteners which includes: bolts, nuts, rivets, screws, washers, and special parts manufactured cold. Note 1: The Steel Industry uses the term “quality” to designate characteristics of a material which make it particularly well suited to a specific fabrication and/or application and does not imply “quality” in the usual sense. 1.2 Wire size range includes 0.062 to 1.375 in. 1.3 Rod size range usually includes 7 / 32 in. (0.219) to 47 / 64 in. (0.734) and generally offered in 1 / 64 increments (0.0156). 1.4 Bar size range includes 3 / 8 in. (0.375) to 1 1 / 2 in. (1.500). 1.5 Sizes for wire, rod and bar outside the ranges of paragraphs 1.2 – 1.4 may be ordered by agreement between purchaser and supplier. 1.6 Material is furnished in many application variations. The purchaser should advise the supplier regarding the manufacturing process and finished product application as appropriate. Five application variations are: Cold Heading Recessed Head Socket Head Scrapless Nut Tubular Rivet 1.6.1 Wire is furnished for all five application variations. 1.6.2 Rod and bar are furnished to the single application variation; Cold Heading. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.