Hydraulic Bolt Tensioning equipment should be selected according to the fastener specifications, required preload, installation conditions, and available workspace. Choosing equipment based only on bolt diameter may lead to poor fit or insufficient capacity. Important factors include bolt size, thread type, material properties, required tensile load, available stud length, and clearance around the joint. The tensioner must also be compatible with the nut configuration and the hydraulic pump. In some cases, a low-profile design may be necessary where surrounding equipment restricts access.