

🔧 Secure your gear, skip the worry — Loctite 242 locks it down!
Loctite 242 Threadlocker Blue is a medium-strength, fast-drying liquid designed to lock and seal threaded fasteners from 6-19mm. Waterproof and corrosion-resistant, it bonds strongly to metals like steel, brass, and aluminum, curing fully in 24 hours. Ideal for professional maintenance and repair, it prevents loosening from vibration while allowing future disassembly.
| ASIN | B002P8LQ1C |
| Best Sellers Rank | #5,093 in Automotive ( See Top 100 in Automotive ) #22 in Thread Lock Sealers |
| Brand | Loctite |
| Color | Blue |
| Customer Reviews | 4.7 4.7 out of 5 stars (437) |
| Date First Available | August 9, 2012 |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 06902545233988 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 50 Milliliters |
| Item Weight | 2.82 ounces |
| Item model number | 242-50 |
| Manufacturer | China |
| Manufacturer Part Number | FBA_23398 |
| Material | Brass,Steel |
| Model | FBA_23398 |
| Number of Pieces | 1 |
| Package Information | Bottle |
| Product Dimensions | 1 x 1 x 1 inches |
| Specific Uses For Product | Fleet and plant maintenance. |
| Unit Count | 1.69 Fluid Ounces |
| Viscosity | Low Viscosity |
| Viscosity Level | Low |
| Water Resistance Level | Waterproof |
G**S
Good value
This works the same as every other bottle of loctite I’ve had and I like the cap and locking nozzle a lot. My bottle was about 3/4 full but I think it’s normal (I know people in other reviews were saying their bottles were “half full”). The label under the sticker is interesting… “for sale in India only”. I’m not worried about any of that though, it works and was a good price.
R**R
Works Well
Been around for a long time, made in USA.
T**6
Loctite 242 Threadlocker - Blue Liquid 1.69oz
This is the common thread locker use in all types of automotive repair, it keeps the bolts and nuts from coming loose, the main way to get this to work is to be sure it is free form grease and oil, just clean the parts with some good brake cleaner or carburetor cleaner and apply to the threads and torque as necessary and you will get good results. The package that you get here will last a DIY person several years and in a mechanical shop it will last a long time. I have been using this same item for years and have always had good results. If you want something more permanent you should use the red formula, but for most applications this formula is great.
E**R
Great Product.
Great product for my build. Easy to use. Coverage is great.
M**Y
GOOD STUFF 👍
Does what it’s supposed too do! Plain &simple !ya need to have in your garage the nuts &bolts will hate ya 🤣
R**A
Bien
T**Y
It’s loctite
It’s loctite. It does what it’s supposed to do.
T**K
Nice OEM replacement!
Worked out fine as replacement.
古**久
もっと早く買っておけば良かったです。 使いやすいし効果も充分。ラッカー留には戻れません。
A**R
Well known product delivery came early
C**N
B**O
ネジを緩めたり締めなおしたり出来る。 安心の中強度 オネシに付けて使ってね。 メネジに、入れすぎると詰まるので注意 時間賀が経つとねじ止め剤が硬化してるので締めなおしは、硬化したねじ止め剤を、綺麗に除去して、塗り直して下さい。
B**L
Exactly as I expected, Thanks!
TrustPilot
1天前
2 周前