The four strut coil ties are similar in form and use to two support coil systems.
But there are two additional struts to develop higher load capabilities.Four pillar coil
There is a "diameter standard, 1-1/4" standard and reconfiguration.
The security workload is based on a security factor of about 2:1.
Note: special procedures may be required if an electroplating coil is required.
Prevent hydrogen embrittlement.