ASTM International

Standard Specification for Load-Indicating Externally Threaded Fasteners
 N F2482

Annotation

This specification covers externally threaded bolts, studs, and cap screws as defined in Table 1, herein called fasteners, capable of indicating clamping forces up to yield strength during the tightening process or post installation residual tension, or both. Load-indicating fasteners utilize mechanical, electronic, or ultrasonic means to indicate fastener tension.

This specification covers bolt diameters ? to 7 in. inclusive.

These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service.

The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

The following precautionary statement pertains only to the test method portion, Section 11, of the specification: 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.

*A Summary of Changes section appears at the end of this standard.

Автоматический перевод:

Стандартная спецификация для указания загрузки внешне резьбовые крепления

Эта спецификация покрывает внешне болты с резьбой, жеребцов и винты с головкой, как определено в Таблице 1, здесь названной застежками, способными к указанию усилий зажима до предела текучести во время процесса сжатия или почтовой инсталляционной остаточной силы или обоих. Указывающие загрузку застежки используют механическое устройство, электронный, или сверхзвуковой означает указывать силу застежки.