Pacer Technology Z-42 Blue Thread Locker (Medium) (0.2oz)
About this part
Thread Locker Overview:
Pacer Technology’s Z-42 Blue Thread Locker is a premium-grade adhesive formulated for metal-to-metal applications, designed to prevent screws and bolts from loosening under vibration. It provides a strong, secure hold while still allowing disassembly with standard hand tools, making it ideal for both hobby and professional use.
About the Thread Locker
Versatile Applications Across Projects
Perfect for R/C vehicles, engines, tools, and machinery, Z-42 Blue Thread Locker is useful anywhere vibration could loosen fasteners. From airplanes and boats to bicycles and lawn equipment, it ensures critical parts stay firmly in place, keeping projects and equipment operating safely and reliably.
Features:
- Strong Vibration Resistance
- Compatible with small fasteners
- Compatible with glue tips (PAAPT21 - sold separately)
- Versatile Use
Includes:
- (6) Z-42 Blue Thread Locker (0.2oz)
*Tech Note: Apply a small drop of Z-42 Thread Locker directly to the threads for secure fastening, and if needed, heat can be used to loosen hardened fasteners, with optional tips available for precise application.
Reviews5.0 · 5 reviews
The is the stuff to get. Good sized bottle, great price, and it does the job. 5 stars from me
Excellent product for the price. Your screws wont unscrew on the the most agressive vibrations.
Awesome product. Nice handy bottle and an easily controllable squeeze design make this my favorite by far.
If you run nitro , you NEED this product! all metal to metal fasteners should be given a drop or two prior to tightening. Yes , even your 17mm wheel hex nuts should be locktighted !! I prefer red on my clutch bell / crankshaft , but I'll leave that up to you to decide, you will need a blow torch and good hex tools to remove red loctite !! Depending on you kit red may be overkill , however some kits are notorious for allowing certain parts to vibrate loose , search the forums or learn by experience where and what type of loctite to use, a good tool box will carry both !!!
if your screws fall dawn when the engine works use this Thread Locker it's will prevent it from falling out
All five reviewers rate this medium-strength blue thread locker 5 out of 5 for the 0.2oz bottle. Reviewers say it keeps screws from loosening under heavy vibration, particularly on nitro engines and metal-to-metal fasteners such as wheel hex nuts. Praise centres on value for the price, the bottle size, and a controllable squeeze design. One reviewer notes that red thread locker may suit high-stress parts like clutch bells or crankshafts, and that removing red locker requires heat and good tools. No reviewer reports a problem with the product itself.
- + Holds screws under heavy vibration
- + Good value for the price
- + Easy-to-control squeeze bottle
- + Suitable for nitro engine and metal fasteners
- − Medium strength may be insufficient for high-stress parts; reviewers suggest red for those
- − Removal can be difficult without heat and good tools