







🔩 Lock it down like a pro — don’t let your bolts bail on you!
LOCTITE 242 Blue Threadlocker is a medium-strength, fast-setting adhesive trusted by automotive professionals and OEMs. Designed to work on all metals including stainless steel and aluminum, it secures nuts and bolts against vibration and loosening. With a 5-minute initial set and full cure in 24 hours, this 36 ml bottle delivers reliable, durable performance for automotive repairs and maintenance projects.




| Brand | Loctite |
| Specific Uses For Product | DIY Projects, Repairs, Maintenance, Workshops, Garages, Outdoor Settings |
| Material | Methacrylate Anaerobic |
| Item Form | Liquid |
| Color | Blue |
| Item Package Quantity | 1 |
| Package Information | Bottle |
| Item Volume | 36 Milliliters |
| Viscosity | Medium |
| Full Cure Time | 24 Hours |
| Water Resistance Level | Not Water Resistant |
| Unit Count | 1.22 Fluid Ounces |
| Viscosity Level | Medium |
| UPC | 079340374775 |
| Global Trade Identification Number | 00079340374775 |
| Manufacturer | Loctite |
| Model | Loctite 492140 Threadlocker 242 All-Purpose Medium Strength Bottle, Blue, 36-ml |
| Item Weight | 2.24 ounces |
| Product Dimensions | 6.25 x 2.25 x 1.1 inches |
| Item model number | 492140 |
| Is Discontinued By Manufacturer | No |
| Exterior | Chrome |
| Manufacturer Part Number | 492140 |
| OEM Part Number | OMC 500421 |
J**H
Does as should
Works great
P**I
Great value for the money
We went all over to get some lock tight and found it was really expensive for the size. We were able to get the larger size off Amazon for a better price then the smaller bottles as Ace Hardware or Walmart.Best value for the money
A**R
Locktite
Works great as always
E**E
Product works
Great stuff for automotive needs. Bottle is a good size if you use it often on older car/trucks that need some hold on the bolts.
W**R
Real loctite!
The real deal
A**T
Well made
I have used various grades of LOCTITE for years. Best on the market.
D**S
Great stuff
Loctite blue what can you say great stuff.
R**E
great
works good
Trustpilot
2 weeks ago
3 days ago