The video clip demonstrates a method for removing a stud using two nuts and wrenches.
Here's a breakdown of the process based on the video and common practices:
- Thread Two Nuts onto the Stud: Screw two nuts onto the exposed threads of the stud.
- Tighten the Nuts Against Each Other: Use two wrenches to tighten the nuts against each other, effectively locking them together. The bottom nut acts as a jam nut.
- Use the Bottom Nut to Unscrew the Stud: With the nuts locked together, use a wrench on the bottom nut to turn the entire assembly counter-clockwise. This will unscrew the stud from its hole.
Explanation:
This method provides a secure grip on the stud without damaging the threads. The two nuts locked together act as a single unit, allowing you to apply torque and unscrew the stud.
Important Considerations:
- Penetrating Oil: If the stud is seized or corroded, apply penetrating oil (like WD-40, PB Blaster, or similar) to the threads and allow it to soak in for some time before attempting removal.
- Heat: In more stubborn cases, applying heat to the surrounding metal (not directly to the stud) can help loosen the stud. Use a propane or butane torch carefully.
- Stud Extractor Tools: If the double-nut method fails, specialized stud extractor tools are available. These tools grip the stud more securely and are less likely to damage it. There are various types including collet type extractors and those that grip with cams.
- Thread Damage: Be careful not to damage the threads on the stud or in the hole. If you encounter significant resistance, stop and re-evaluate your approach. Using excessive force can strip the threads or break the stud.
- Safety: Wear appropriate safety glasses and gloves when working with tools and chemicals.
