This gauge is designed to measure the tensile force of bolts. To install, simply insert the gauge together with A-2 bonding adhesive into a pre-drilled hole in the bolt head. This unique method ensures that the gauge will not be damaged.

Datasheet: BTM series Bolt strain gauge

Main Test Materials Bolt(M10 or larger) Materials Backing Special plastics
Operating Temperature -10 to +80°C Materials Element Cu-Ni alloy foil
Compensation range --- Strain limit 0.5%
(5000×10-6)
Bonding adhesive A-2 Fatigue life at room temp. ---

 

Single element(G.F. 2.1 approx.)

BTM bolt schematic
BTM straingauge schematic

type gauge
length
(mm)		 gauge
width
(mm)		 backing
length
(mm)		 backing
width
(mm)		 Resistance
(Ω)		 Applicable hole diameter
(mm)
BTM-1C 1 0.7 5.6 1.4 120 ø1.6
BTM-6C 6 1 12 1.7 120 ø2