🔧 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 on factory lines, it delivers durable vibration resistance on metals including stainless steel and aluminum. It sets in 1 hour, fully cures in 24, and requires heat for disassembly, making it the go-to solution for securing critical vehicle components under extreme conditions.
| ASIN | B0002KKTTK |
| Best Sellers Rank | #53,682 in Automotive ( See Top 100 in Automotive ) #75 in Thread Lock Sealers |
| Brand | Loctite |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (100) |
| 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 |
| 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
1 month ago
5 days ago
