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🔧 Lock it down like a pro — don’t let your bolts bail on you!
Loctite 38656 277 Red Threadlocker is a high-strength adhesive designed for large automotive bolts and studs (≥1 inch). OEM-specified and trusted in factory assembly, it cures fully in 24 hours, resists vibration loosening, and works on multiple metal types with excellent oil tolerance. Heat is required for disassembly, making it ideal for heavy-duty, long-lasting fastening in demanding environments.
| ASIN | B0002KKTTK |
| Best Sellers Rank | #121,327 in Automotive ( See Top 100 in Automotive ) #92 in Thread Lock Sealers |
| Brand | Loctite |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (107) |
| Date First Available | July 7, 2004 |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340386563 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 36 Milliliters |
| Item Weight | 2.4 ounces |
| Item model number | 38656 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 555353 |
| Material | Aluminum,Stainless Steel |
| Model | Loctite 555353 Threadlocker 277 High Strength Bottle, Red, 36-ml |
| Number of Pieces | 1 |
| OEM Part Number | 38656 |
| Package Information | Bottle |
| Product Dimensions | 6.25 x 2.25 x 1.1 inches |
| Special Feature | Not_Performance_Used |
| Special Features | Not_Performance_Used |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340386563 |
| Unit Count | 1.22 Fluid Ounces |
| Viscosity | 7000 centipoise |
| Viscosity Level | Medium to High |
| Water Resistance Level | Not Water Resistant |
W**E
Great
It works. That’s why I bought it.
A**N
LOC TITE
Lightning ship. Professional packaging. Great communication. Will recommend highly. As far as for Longevity including usage!! FOR BUSINESS USE, WORKS WELL, REPEAT CUSTOMER MEANS IT IS GREAT! A JOB WELL ORCHESTRATED FROM START TO FINISH. Just perfect! Thank you. Anthony. H Burlington, MA.
D**R
Great Product
This product works as it should and easy to use
B**1
Good size bottle for lots of jobs
Can’t go wrong with this stuff, absolutely need depending on the project. Good size bottle, just what I was looking for
M**6
Worked great. RZR 800
Worked great for my RZR 800 pinion nut fix.
J**W
It works with a 0.010" gap like the tech specs claimed!
Regular loctite is not suitable for large gaps up to 0.010" but this is. HOWEVER like the tech specs say, you want to wait 3 days for a gap that large to reach maximum strength.
S**N
Red as a tomato
This product is red, therefore it is superior to all non red products. It also did a good job keeping things real tight on my vehicle if that’s what you plan on using it for
D**Y
Bottle was only half full
It’s a great product. However, when I received the bottle, it was only half full… 🤷♂️
Trustpilot
3 weeks ago
3 weeks ago