J-B Weld Threadlockers provide a reliable and superior lock and seal for threaded fasteners. Ideal on all mechanical parts, body assemblies, and hundreds of other applications to prevent loosening of fasteners from shock and vibration. J-B Weld Perma-lock Medium Strength Threadlocker is ideal for fastener applications requiring easy disassembly with hand tools.

• PERMALOCK: Provides a superior lock and seal for threaded fasteners. Ideal on all mechanical parts, body assemblies, and hundreds of other applications to prevent loosening from shock and vibration
• WHAT THE PROFESSIONALS USE: Builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments. Choose the product pros trust for your project
• EASY TO USE: Threadlocker is ideal for fastener applications requiring easy disassembly with hand tools. Perfect for 1/4- 1" fasteners. Cap will not drip, spill or clog
• DEPENDABLE & VERSATILE: Perfect for use on rocker arms, stud bolts, frame bolts, fasteners and bushings, loose screws and any other vibration sensitive item
• DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond

Orders ship free. Most in-stock orders placed before the daily cutoff are processed the same business day.

Contact us if you have an issue with your order. Return eligibility may vary based on the product and its condition.