Flexible spring-steel fish wire helps guide 1/2" bolts and spacers through enclosed vehicle frame sections during trailer hitch installation. Coiled end threads onto the bolt for easier positioning through hard-to-reach mounting holes.
The Curt 58400 is designed to simplify trailer hitch installations that require mounting hardware to be positioned inside a hollow vehicle frame. The coiled end threads onto a compatible 1/2" diameter bolt, allowing the installer to feed or pull the bolt and spacer through an access opening and into the required mounting hole.
Its flexible spring-steel construction can be bent and twisted as needed to navigate enclosed frame sections while maintaining enough rigidity for controlled hardware placement. The 18" length provides useful reach for many common trailer hitch installation applications.
Coiled end threads onto compatible 1/2" diameter mounting bolts
Provides extra reach for guiding hardware through enclosed vehicle frame sections
Bends and twists to help navigate difficult frame openings and mounting locations
Designed for pulling bolts and spacers through hard-to-access trailer hitch mounting holes
Curt 58400 is specifically designed for 1/2" diameter threaded bolts. Verify the required hardware size for the trailer hitch installation before selecting a fish wire.
In The Package: • Curt 58400 18" Fish Wire for 1/2" Bolts
Feed the fish wire through the required frame mounting hole and out through an accessible opening. Thread the coiled end onto the 1/2" bolt, then carefully pull the fish wire back through the frame to guide the mounting hardware into position.