Bolt Proof, Lap Shear and Specialty Extensometers

Designed for measuring small measuring strain ranges as required for proof load testing of bolts and similar applications such as yield measurement.

Gauge Lengths: 25 – 150 mm (plus optional extensions)
Measuring Ranges: 1.25 mm
Temperature Range: -270 °C to 200 °C with -LHT option
Key Features: Bolt proof testing

Extensometers for measuring elongation of rebar coupler, splice, and sleeve assemblies. Use for tension, cyclic, slip, and differential elongation tests.

Gauge Lengths: 95 – 975 mm
Measuring Ranges: +12.5 mm
Temperature Range: -40 °C to 100 °C
Key Features: Rebar coupler / splice extensometer

Designed specifically for performing tests in accordance with ASTM D5656, Standard Test Method for Thick-Adherend Metal Lap-Shear Joints for Determination of the Stress-Strain Behavior of Adhesives in Shear by Tension Loading. The deformation is measured on opposite sides of the test specimen and the output is an average of the two readings.

Measuring Ranges: 0.5 mm to 3.0 mm
Temperature Range: -270 °C to 200 °C with -LHT option
Key Features: D5656 adhesive lap shear test

Submersible extensometer designed for performing tests in water, saline solutions, and other liquids compatible with the materials of construction.

Gauge Lengths: 10 – 25 mm
Measuring Ranges: ≤5 mm
Temperature Range: -40 °C to 100 °C
Key Features: Submersible; axial extensometers