7mm cable protector pipe line threading pipe spring protector protective cover

Diameter 13.5×13 MM:
Material: stainless steel material
Scope of application: use of line between door and door frame
Door side (sleeve side) fixing piece: 50*20 screw hole center: 40 bushing length: 130 (stretch)
Door side (nut side) fixed piece: 50*20 screw hole center: 40, nut thickness: 10
Fixed sheet thickness: 1.5
Natural stretching distance: 50 thread through hole, normal diameter about: 8 (suitable for cable less than 7mm outside diameter)