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LOCTITE 263 Red High Strength Threadlocker

Features and Benefits

Dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners.
LOCTITE® 263 is a red, dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners. It cures between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. It works on active metals (e.g. brass, copper) and passive substrates such as stainless steel and plated surfaces.
  • Particularly suited for heavy duty applications such as studs into motor housings where high strength is required
  • Prevents loosening and leakage from shock and vibration
  • Designed for the permanent locking and sealing of threaded fasteners
  • Provides robust curing performance
  • Offers high temperature performance and oil tolerance
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE 263 Threadlocker 1330334 en-US
IDH: 1330334
EAN: 079340439023

Size Case: 1 l Bottle

Quantity: 4.0/case

LOCTITE 263, 250ml 1330335 en-US
IDH: 1330335
EAN: 079340439030

Size Case: 250 ml Bottle

Quantity: 10.0/case

LOCTITE 263 Threadlocker 1330582 en-US
IDH: 1330582
EAN: 079340439047

Size Case: 0.5 ml Bottle

Quantity: 100.0/case

LOCTITE 263, 50ml 1330585 en-US
IDH: 1330585
EAN: 079340439061

Size Case: 50 ml Bottle

Quantity: 10.0/case

No documents found

Technical Information

Agency Approvals / Specifications NSF/ANSI 61
Application Method Dispense System, Manual
Application Temperature -65.0 - 360.0 °F (-55.0 - 180.0 °C )
Applications Threadlocking
Breakaway Torque, M10 Steel Nuts/Bolts 33.0 N·m (290.0 in./lb. )
Color Red
Cure Type Anaerobic Cure
Fixture Time 10.0 min.
Key Characteristics Disassembly: Disassembly with Heat, Fluorescent, General Purpose, Oil Tolerant, Primerless, Strength: High Strength
Physical Form Liquid
Prevail Torque, M10 Steel Nuts/Bolts 33.0 N·m (290.0 in./lb. )
Specific Gravity, @ 25.0 °C 1.1
Substrates Metal, Metal: Passive Metal
Technology Acrylic
Viscosity, 20 RPM 500.0 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 bolts are being assembled, torque them down to the correct value within the fixture time window.

5a. Disassembly - Hand Tools

Disassemble with standard hand tools.

5b. Disassembly - Heat

If disassembly is not possible using normal hand tools, apply localized heat to approximately 500°F/260°C. Disassemble while hot with standard hand tools.

Equipment

For manual dispensing, the use of LOCTITE® EQ Pro Pump (for 50ml and 250ml bottles) or LOCTITE®Peristaltic Hand Pumps (50 ml or 250 ml versions) is recommended to ensure a consistent application volume.

Hint

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

Where to Buy

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LOCTITE 263
Dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners.

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