RJS Tech 53991 Jam-Bar Toilet Bolt Lock Wrench
A thin-blade specialty wrench used during toilet (and tank) removal to hold closet bolts in place so the nut can be removed without the bolt spinning.
Key Features:
- Thin, flat blade designed to slip into narrow/tight spaces below the nut (manufacturer documentation)
- Patented "V" / Micro Tooth blade designed to lock onto the bolt and resist spinning (manufacturer documentation)
- Grips both 1/4" and 5/16" threaded toilet bolts (manufacturer documentation)
- Designed so the more the bolt tries to spin, the tighter the teeth grip (manufacturer documentation)
- High quality tool steel with an easy-grip handle (manufacturer documentation)
- Described as simplifying toilet and tank removal (manufacturer documentation)
Compatibility & Applications:
- Intended for use on toilet closet bolts in the 1/4" and 5/16" size range (manufacturer documentation)
- Must only be used where the manufacturer specifies this exact part number: 53991
Installation & Operation Notes:
- Intended for use by installers familiar with toilet removal and reset practices.
- Manufacturer use concept: insert the Jam-Bar below the nut so the teeth lock onto the bolt, then use a box wrench or similar tool to work the nut off while the bolt is held from spinning (manufacturer documentation).
- Refer to the toilet manufacturer's installation/service guidance for proper shutoff, draining, and safe removal/reset steps.
Maintenance & Troubleshooting:
- This is a service tool typically used when toilet bolt nuts are difficult to remove because bolts are corroded, damaged, or tend to spin in place (manufacturer documentation).
- If the nut still cannot be removed, follow standard plumbing service practices for seized hardware to avoid damaging the bowl, tank, or mounting surfaces (no additional diagnostic guidance is provided in the supplied sources).
User Reviews & Q&A Summary:
- Reviews commonly describe it as helpful for preventing bolt spin and making toilet removal easier in tight spaces.
- Many users mention it being especially useful when bolts are rusted/corroded or when bolt threads are damaged and a normal hold-back method is difficult.
- Critical feedback trends toward job-to-job variability - when access is extremely limited or hardware is severely seized, some users still report needing additional methods alongside the tool.