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Force Sensing Bolts & Studs
Force Sensing Bolts and Studs are fasteners that provide precise clamping force measurement to within an accuracy of 1%, where typical methods can be worse than 20%! Force Sensing Bolts and Studs are available in many configurations including; hex head, 12- point, or other types of custom/unique bolts. 

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page34-ac-boltLTA

Strainsert Custom Bolt


Many Uses and Applications
  • Measurement of Preload in Critical Assemblies
  • Inspection of Preload after Assembly, Shipping, Prior to Use
  • Provides Overload Detection Resulting from External Loading
  • Used as Measurement Tool During Actual / Simulated Service Conditions (Shock, Vibration, Gasket / Joint Relaxation, etc.)
  • Feedback to Control Systems
  • Provides for Direct Analysis of Components Under Investigation.


Superior Technical Features
  • Small installation holes allow for greater load carrying capability
  • Measurement Accuracy (<1% F.S., Typically.)
  • Gage Installations are Two Patterns in Series, 180° ...
Page 35 Photo Top

Strainsert Custom Stud


Many Uses and Applications
  • Measurement of Preload in Critical Assemblies
  • Inspection of Preload after Assembly, Shipping, Prior to Use
  • Provides Overload Detection Resulting from External Loading
  • Used as Measurement Tool During Actual / Simulated Service Conditions (Shock, Vibration, Gasket / Joint Relaxation, etc.)
  • Feedback to Control Systems
  • Provides for Direct Analysis of Components Under Investigation.


Superior Technical Features
  • Small installation holes allow for greater load carrying capability
  • Measurement Accuracy (<1% F.S., Typically.)
  • Gage Installations are Two Patterns in Series, 180° Apart in Small Holes (Minimizes Errors Due to Bending and ...
Bolt---Stud-Photo_page38

Standard Internally Gaged Hex Head Cap Screws, SXS Series



To measure accurate preload, service load and overload of bolted assemblies

For maximum uniformity, efficiency and reliability in bolted assemblies

For effective research, testing and manufacturing of bolted assemblies
SDX

Standard Internally Gaged 12-Point Cap Screws, SDH Series



To measure accurate preload, service load and overload of bolted assemblies

For maximum uniformity, efficiency and reliability in bolted assemblies

For effective research, testing and manufacturing of bolted assemblies

(Ferry Cap Counter-Bored Screws interchangeable with most Socket Head Cap Screws)
Bolt---Stud-Photo_page38

Standard Internally Gaged Hex Head Cap Screws, SXA Series



To measure accurate preload, service load and overload of bolted assemblies

For maximum uniformity, efficiency and reliability in bolted assemblies

For effective research, testing and manufacturing of bolted assemblies
gagedstudmid_new

Standard Internally Gaged Studs, ST Series



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 ...