LOCTITE® 242

Known as LOCTITE 242 Blue Threadlocker Medium Strength MIL SPEC

Features and Benefits

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Available sizes:

Bottle

10.0/case

Bottle

10.0/case

Bottle

10.0/case

Bottle

4.0/case

Tube

100.0/case
TDS Download
Where to Buy
A medium-strength, medium-viscosity, thixotropic threadlocking adhesive for metal thread sizes up to M36.
LOCTITE® 242® is a general purpose, medium strength, medium viscosity, anaerobic-curing threadlocking adhesive. It is thixotropic to prevent migration after application, and is perfect for fasteners requiring normal disassembly with standard hand tools.
  • Medium strength
  • Medium viscosity
  • Fast fixture
  • Thixotropic for ease of application
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Documents and Downloads

Technical Data Sheet
LOCTITE® 242™
Download TDS
Safety Data Sheets and RoHs
  • Bottle 10.0/case - IDH 135354
  • Bottle 10.0/case - IDH 135355
  • Bottle 10.0/case - IDH 135356
  • Bottle 4.0/case - IDH 209729
  • Tube 100.0/case - IDH 230718
LOCTITE® 242, 10 ml Bottle 135354 en-US
IDH: 135354
EAN: 079340242210

Size Case: Bottle

Quantity: 10.0/case

Download SDS

Download RoHs
LOCTITE® 242, 250 ml Bottle 135356 en-US
IDH: 135356
EAN: 079340242418

Size Case: Bottle

Quantity: 10.0/case

Download SDS

Download RoHs
LOCTITE® 242, 1 l Bottle 209729 en-US
IDH: 209729
EAN: 079340242432

Size Case: Bottle

Quantity: 4.0/case

Download SDS

Download RoHs
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Technical Information

Chemical basis / base Methacrylate
Color Blue
Fixture time 5.0 - 20.0 min.
Key characteristics Thixotropic
Recommended for use with Metal: brass, Metal: steel, Metal: steel - stainless steel
Viscosity, Brookfield - RVF, @ 25.0 °C Spindle 3, speed 20 rpm, Helipath 800.0 - 1600.0 mPa·s (cP)

How to

Step by Step Guide

1. Preparation - Cleaning

It is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying LOCTITE 242 threadlocker.

2. Preparation - Activation

If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperature (below 5°C), use activator LOCTITE® SF 7649 (see cure speed vs activator graph in the TDS).

3. Application

Apply liquid threadlocker to the engagement area. For manual dispensing, the use of a peristaltic handgun or the LOCTITE® Pro Pump is recommended to ensure a consistent application volume.

4. Application - Through-Hole

Insert bolt and apply threadlocker to the exposed thread. Assemble nut and tighten to the correct/specified torque.

5. Application - Blind Hole

Apply several drops of liquid threadlocker down the sides of the blind hole filling the lower third. Apply several drops to the bolt.

6. Assembly

Assemble and tighten. If several bolts are being assembled, torque them down to the correct value within the fixture.

7. Disassembly - Hand Tools

Disassemble with standard hand tools.

Hint

For the disassembly of corroded or seized parts use LOCTITE® LB 8040 Freeze and Release.

Where to Buy

Buy Online

LOCTITE® 242
A medium-strength, medium-viscosity, thixotropic threadlocking adhesive for metal thread sizes up to M36.
  • Bottle 10.0/case - IDH 135354
  • Bottle 10.0/case - IDH 135355
  • Bottle 10.0/case - IDH 135356
  • Bottle 4.0/case - IDH 209729
  • Tube 100.0/case - IDH 230718

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