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LOCTITE® 222MS Purple Low Strength Threadlocker

Known as LOCTITE 222MS Purple Threadlocker Low Strength/Small Screw MIL SPEC

Features and Benefits

Mil Spec threadlocker for small fasteners under ¼”. Low strength, removable with hand tools.
LOCTITE® 222MS™ is a purple, low strength, mil-spec threadlocker that is ideal for fastener diameters of 1/4" (6mm) and smaller. Its controlled lubricity allows for accurate clamp loads. Parts can be separated using hand tools. Applications include adjustment screws, countersunk head screws, and set screws; on collars, pulleys, tool holders and controllers. Also for low strength metals such as aluminum or brass.
  • Ideal for low-strength threadlocking of adjusting screws, countersunk head screws and set screws
  • Prevents fastener loosening on vibrating assemblies, e.g. pumps, gear boxes, or presses
  • Especially suited to small thread sizes (1/4"/6mm)
  • Permits disassembly with hand tools for servicing
  • Mil Spec: Mil-S-46163A Type II Grade M; NSF P1 Certified
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® 222MS, 250 ml Bottle 135335 en-US
IDH: 135335
EAN: 079340222410

Size Case: 250 ml Bottle

Quantity: 10.0/case

LOCTITE® 222MS, 0.50 ml Tube 231483 en-US
IDH: 231483
EAN: 079340222052

Size Case: 0.50 ml Tube

Quantity: 100.0/case

No documents found

Technical Information

Breakaway torque, M10 Steel Nuts/Bolts 6.0 N·m (53.0 in./lb. )
Color Purple
Fixture time 20.0 min.
Key characteristics General Purpose, Strength: Low Strength, Thixotropic
Operating temperature -55.0 - 150.0 °C (-65.0 - 300.0 °F )
Prevail torque, M10 Steel Nuts/Bolts 4.0 N·m (30.0 in./lb. )
Viscosity, @ 25.0 - 77.0 Speed 20 rpm 1200.0 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 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 LOCTITE SF 7649 activator. Allow to dry.

3a. Application - Through Hole

Apply a few drops of liquid threadlocker to the thread engagement area. Assemble nut and tighten to proper torque.

3b. Application - Blind Hole

Apply several drops of liquid threadlocker into lower third of blind hole, as well as a few drops onto male threads, and then install male threads. Tighten to proper torque.

4. Assembly

Assemble and tighten to proper torque requirement. If several screws/small bolts are being assembled, torque them down to the correct value within the fixture time window.

5. Disassembly

Disassemble with standard hand tools.

Where to Buy

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Mil Spec threadlocker for small fasteners under ¼”. Low strength, removable with hand tools.

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    Frequently Asked Questions