1.1 这些测试方法包括建立进行测试的程序，以确定外螺纹和内螺纹紧固件、垫圈、直接张力指示器和铆钉的机械性能。 1.2 性能要求及其测定的适用试验在各个产品标准中规定。在试验要求独特或与这些标准程序不一致的情况下，产品标准应规定控制试验要求。在没有任何规定的试验要求的情况下，应适用这些试验方法。 1.3 这些测试方法描述了用于确定以下性能的机械测试: 部分 对于外螺纹紧固件: 3 产品硬度 3.1 验证载荷 3.2.1 方法1、长度测量 3.2.3 方法2，屈服强度 3.2.4 方法三、均匀硬度 3.2.5 全尺寸产品的轴向拉伸测试 3.4 全尺寸产品的楔形拉伸试验 3.5 机加工试样的张力测试 3.6 断裂总伸长率试验 单剪试验 3.7 3.8 对于内螺纹紧固件: 4 产品硬度 4.1 验证载荷试验 4.2 防锥载荷试验 4.3 对于垫圈和直接张力指示器: 5 产品硬度-一般要求 5.1 通过硬化垫圈 5.2 渗碳垫圈 5.3 不锈钢和有色金属垫圈 5.4 直接张力指示器 5.5 压缩载荷 5.6 对于铆钉: 6 产品硬度 6.1 金属涂层外螺纹紧固件脆化试验 7 测定脱碳和渗碳的试验方法 8 1.4 以SI单位或英寸表示的值-英镑单位应单独视为标准单位。每个系统中陈述的值不一定完全等同；因此，为确保符合标准，每个系统应独立使用，两个系统的数值不得合并使用。 附注1: 对于英寸紧固件，这些值以英寸-磅表示，对于公制紧固件，这些值以SI公制单位表示。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.6 本国际标准是根据世界贸易组织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e（技术性贸易壁垒）委员会。

1.1 These test methods cover establishment of procedures for conducting tests to determine the mechanical properties of externally and internally threaded fasteners, washers, direct tension indicators, and rivets. 1.2 Property requirements and the applicable tests for their determination are specified in individual product standards. In those instances where the testing requirements are unique or at variance with these standard procedures, the product standard shall specify the controlling testing requirements. In the absence of any specified test requirement(s), these test methods shall apply. 1.3 These test methods describe mechanical tests for determining the following properties: Section For Externally Threaded Fasteners: 3 Product Hardness 3.1 Proof Load 3.2.1 Method 1, Length Measurement 3.2.3 Method 2, Yield Strength 3.2.4 Method 3, Uniform Hardness 3.2.5 Axial Tension Testing of Full-Size Product 3.4 Wedge Tension Testing of Full-Size Product 3.5 Tension Testing of Machined Test Specimens 3.6 Total Extension at Fracture Test Single Sheer Test 3.7 3.8 For Internally Threaded Fasteners: 4 Product Hardness 4.1 Proof Load Test 4.2 Cone Proof Load Test 4.3 For Washers and Direct Tension Indicators: 5 Product Hardness-General Requirements 5.1 Through Hardened Washers 5.2 Carburized Washers 5.3 Stainless Steel and Nonferrous Washers 5.4 Direct Tension Indicators 5.5 Compression Load 5.6 For Rivets: 6 Product Hardness 6.1 Test for Embrittlement of Metallic-Coated Externally Threaded   Fasteners 7 Test Method for Determining Decarburization and Carburization 8 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Note 1: The values are stated in inch-pound for inch fasteners and SI metric units for metric fasteners. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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.