Hasselfors  backstay tensioners have smooth, clean surfaces. Even the fork terminal is fully covered. These low-weight backstay tensioners are simple to use. Insert  a standard winch and handle and turn. The tensioner has a maximum working load of 30kn. The stroke is 250 or 400mm, depending on model chosen.

HI-MOD Fail Safe Insulators utilise the same features that have made the Hi-Mod compression fittings so popular, this insulator has an internal ball-socket in the main body that threads onto the connecting stud.

The Nut is insulated from the stainless steel body by a Tufnol socket, preventing electrical transference to the insulator body or opposite terminal.

Should for an reason the Tufnol be compronised, the nut will bottom out against the stainless steel housing, while the back stay will loosen, the insulator will remain attached allowing the rig to be re-tensioned until a repair can be made.