Strainsert Co.
12 Union Hill Rd.,West Conshohocken, PA 19428
Phone: 610-825-3310
Fax: 610-825-1734
Toll-free: 800-529-1502
Email: tfoley@strainsert.com
Website: http://www.strainsert.com
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Item # ST, Standard Internally Gaged Studs, ST Series
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Accurately Senses Loads Induced in Studs
Detects Overloads in Assembled Equipment
Inexpensive Force Link Transducer
STRAINSERT ST Series Standard Studs employs an exclusive internal gaging technique (U.S. Patent #2,873,341) to detect the loads
induced in them. This technique consists of the installation of foil type strain gages inside a small hole drilled along the
longitudinal neutral axis of the Stud. This is far superior to the usual external gage installations both in mechanical and
environmental ruggedness. Furthermore, a neatly miniaturized packaging is achieved by using the Stud itself
to protect and seal the strain gage circuit. Still, this
arrangement compares very favorably with the best
external gage installations in accuracy and stability.
Strainsert Studs, along with other internally gaged
fasteners, were the first to provide the means for direct,
accurate, and independent inspection of assembled
structures under simulated or actual service conditions.
Vibration and Shock loads, as well as static loads, on such
assemblies can be easily measured to determine their
structural reliability and integrity.
The ST Studs can also be used as inexpensive force
transducers in many instances.
Type C – screw type miniature connector, requires
mating cable assembly.
Type H – multi-pin header for soldered lead wire
connections
Type W – factory installed cable
Over 90 different STRAINSERT Series ST Studs are stocked, ready for gaging.
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Strainsert fasteners utilize an exclusive internal gaging method (U.S. Patent #2,873,341) to indicate bolt
tension due to preload and subsequent service loads with strain gage accuracy. They are the first
fasteners to provide a means for accurate, independent inspection of an assembled bolt for preload,
thereby enhancing the structural integrity and reliability of both the bolt and the assembly.
Feature
Measurement of preload induced in fasteners
Accurate tightening of fasteners within 1% of induced load
Uniform tightening of fasteners in a bolt pattern
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