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🔩 Lock it down, loosen it up — the pro’s choice for every bolt!
LOCTITE 243 Threadlocker is a medium-strength, blue anaerobic adhesive designed for automotive fasteners between 6mm and 20mm. Engineered for superior adhesion on all metals including passive substrates, it tolerates oil contamination and withstands high temperatures. Trusted by OEMs and race teams alike, it cures quickly to secure bolts against vibration while allowing easy disassembly with hand tools, making it the ultimate general-purpose threadlocker for professional-grade vehicle maintenance.
| Asin | B004L439FE |
| Best Sellers Rank | #9,837 in Automotive (See Top 100 in Automotive) #57 in Automotive Fillers, Adhesives & Sealants |
| Brand Name | LOCTITE |
| Color | Blue |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,183) 4.8 out of 5 stars |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340439078 |
| Included Components | (1) 243 Threadlocker for Automotive, Blue, 6-ml |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 18 g |
| Manufacturer | Loctite |
| Material Type | Aluminum,Stainless Steel |
| Model | 1330799 |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Oil Tolerant, Medium Strength Bond, Removable with Hand Tools, Improved Adhesion on Various Metals and Passive Substrates |
| Part Interchange Info | 1330799 |
| Part Number | 1330799 |
| Specific Uses For Product | Automotive |
| Upc | 079340439078 |
| Viscosity Level | High |
| Volume | 6 Milliliters |
| Water Resistance Level | Water Resistant |
User
Can’t beat this stuff!
Can’t beat it! I use for my gun scopes bases so they want come lose when shooting and also I used on the kitchen sink faucet handle that always gets lose, but not anymore! Highly recommend
User
good
good
User
Bloquea las tuercas sin exagerar
Muy buen producto para bloquear tuercas y evitar que se aflojen.
User
Good stuff, really works better than the 242 on stainless and oily environment
The 243 formula really makes a difference when used on stainless and other corrosion resistant metals, even with oil or grease contamination, like that you often get in tap holes of anything mechanical like engine, bikes, gears and sprockets, motors, etc. Using the 242, I often observed very poor, if not total lack of thread locking, when using stainless fasteners or in a shop environment, anywhere around greasy or oily parts. With the 243, I still yet to have a failure in thread locking and I've been using it for over a year now.36mL is a lot cheaper than the 6mL tube and no, it won't go to waste because you used it once a year ago and are afraid it's no good anymore. Simply cap it off properly and it's gonna remain usable for a very long time. Don't forget to shake it up before using it that day, just like you would shake and stir your paint before painting.
User
Great value , brand name quality.
Its loctite and it works. Short and simple!
Trustpilot
3 weeks ago
3 weeks ago