1.1本规范涵盖带和不带防松螺母的锻造焊接、铸造或锻造螺丝扣。 1.2螺丝扣是一种内螺纹环或套筒，用于组装，两端带有螺纹螺柱、孔眼、钩或钳口，用于向杆、钢丝绳等施加张力。 1.3以英寸-磅为单位的数值应视为标准值。括号中给出的国际单位仅供参考，可能是近似值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This specification covers swaged welded, cast, or forged turnbuckles with and without jam nuts. 1.2 A turnbuckle is an internally threaded loop or sleeve intended for assembly with a threaded stud, eye, hook, or jaw at each end, used for applying tension to rods, wire rope, etc. 1.3 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information purposes only and may be approximate. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.