1.1 This specification covers externally threaded bolts, studs, and cap screws as defined in , 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.
1.2 This specification covers bolt diameters 1/4 to 7 in. inclusive.
1.3 These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service.
This specification covers externally threaded bolts, studs, and cap screws 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. These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service. This specification covers the following four different types of load-indicating fasteners: mechanical dial type (MT); electronic type (ET); strain gauge type (ST); and ultrasonic type (UT). Tension test shall be performed to conform to the chemical and mechanical requirements specified.
SDO | ASTM: ASTM International |
Document Number | F2482 |
Publication Date | Dec. 1, 2005 |
Language | en - English |
Page Count | 4 |
Revision Level | 05 |
Supercedes | |
Committee | F16.02 |