Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
LOCTITE Automotive Threadlocker Blue 243 is a medium-strength, medium-temp, oil-tolerant adhesive designed for general-purpose automotive applications. OEM-specified and trusted by professionals, this anaerobic threadlocker bonds effectively to all metals, including stainless steel, aluminum, and plated surfaces. Its enhanced oil tolerance ensures reliable performance, even in challenging conditions. LOCTITE Blue 243 is ideal for securing components that endure heavy shock, vibration, and chemical exposure. It works perfectly on rocker studs, adjustment bolts, valve and cam covers, oil pans, disc brake calipers, intakes, alternators, and pulley assemblies. Suitable for all nut and bolt applications ranging from to (6 mm to 20 mm). The product sets in just 10 minutes, allowing for a fast start, and reaches full strength within 24 hours, providing a durable, temperature-resistant bond up to 140F. LOCTITE Blue 243 delivers long-lasting, reliable results for your automotive repair and maintenance needs.
The Loctite 243 is a must-have in my toolbox. I use it for securing screws in furniture and car parts, and it works like a charm. I love that it’s surface insensitive; I didn’t have to worry about cleaning up every last bit of grease. Highly useful for all sorts of projects!
M
Maya Chen
Solid Threadlocker for Various Projects
I used the Loctite 243 on my motorcycle's engine bolts, and it did an excellent job. After a few months, the bolts are still secure even after some rough rides. The medium strength is just perfect — not too strong that I can't remove them later, but strong enough to hold everything in place.
C
Carlos Ramirez
Good, but with some challenges
I recently tried the Loctite 243 for securing some items on my boat. The adhesive works well, but I found the instructions a bit unclear on curing time. It took longer than I expected to fully set, which was slightly frustrating. Still, it seems to hold pretty well now!
J
Jessica Patel
Does the job, but not impressed
I bought this Loctite threadlocker thinking it was going to be the best for my home repairs. While it did hold some items, it wasn’t as effective on oily surfaces. I ended up needing a stronger product to finish my projects. It’s okay, but I expected more.
Free Shipping
Quality Support
Return & Refund
Gift Voucher
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
