Direct Length Measurement
In addition to RotaBolt fasteners, the technology has also been applied to the standard Indicating Rod Bolt outlined in ASME PCC-1-2000, to develop new bolts which are a generational step forward.
An Indicating Rod Bolt uses direct length measurement to gauge the delivery of load - the new version gives a much more accurate measurement of bolt tension from the length extension, to guarantee the uniform delivery and maintenance of load.
RotaBolt technology has been applied to produce bolts which are individually 100% load test calibrated and fitted with a special indicator to measure extension. Every bolt's extension measurement is individually certified.