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PT42 Z-42 Blue Thread Locker .20oz (Box of 6)
PT42 Z-42 Blue Thread Locker .20oz (Box of 6)
PT42 Z-42 Blue Thread Locker .20oz (Box of 6)
PT42 Z-42 Blue Thread Locker .20oz (Box of 6)

PT42 Z-42 Blue Thread Locker .20oz (Box of 6)

Brand: Zap

Part No: 5525735

£19.95 RRP £21.00

Shadow Stock: Usually ships next day

Collect Instore

The Zap PT42 Z-42 Blue Thread Locker 0.20oz (Box of 6), part number 5525735, is a medium-strength thread locking compound designed to secure metal fasteners exposed to vibration. It helps keep set screws, axle and drive nuts, and engine mounting screws in place across R/C cars, planes, helicopters, and boats, and is equally useful for general mechanical tasks.

This blue thread locker provides reliable holding power while still allowing later disassembly with standard hand tools—ideal for maintenance and servicing. Supplied as a box of 6 x 0.20oz units.

Key Features

  • Medium strength; seals metal parts against vibration
  • Allows later disassembly with hand tools
  • Works best on metal and aluminium
  • Blue colour for easy identification

Tech Specs

  • Weight: 0.20oz (approx. 5.67g)
  • Shipping weight: 0.16kg (0.35lb)
  • Material: Thread locker
  • Works on: Most metals (including aluminium)

Typical Uses

  • Set screws
  • Axle and drive nuts
  • Engine mounting screws
  • Fasteners subject to vibration in R/C and general applications

Z-42 Thread Locker (Blue)

Professional Strength Vibration Protection for Metal Fasteners

Z-42 Thread Locker is a premium-grade "Blue" anaerobic adhesive designed to prevent the loosening of metal nuts, bolts, and screws. It is the ultimate insurance policy for any mechanical assembly, ensuring that fasteners stay securely in place even when subjected to extreme vibration, thermal expansion, and mechanical shock.

Why Engineers & Hobbyists Choose Z-42:
  • Vibration-Proof: Specifically formulated to lock set screws, axle nuts, and engine mounts that would otherwise vibrate loose.
  • Removable Strength: Provides a medium-strength bond that holds securely but allows for disassembly with standard hand tools.
  • Versatile Protection: Not just for hobbies; it is equally effective on cars, motorcycles, bicycles, lawn equipment, and power tools.
Targeted Applications RC Aeroplanes, Helicopters & Cars

A "must-have" for every flight box and pit bag. Use Z-42 on engine mounting screws, rotor head assemblies, and drivetrain components. It is essential for any metal-to-metal contact point on RC helicopters and nitro-powered vehicles where high-frequency vibration is constant.

Automotive & Workshop

From bicycle brake callipers to lawnmower deck bolts, Z-42 keeps your equipment safe and operational. It seals threads against leakage and prevents corrosion, making future maintenance easier while ensuring current layout integrity.

Pro-Tips for a Secure Lock
  • Precision Application: A little goes a long way. Apply a single small drop directly to the threads before assembly. For micro-fasteners, use Zap Flexi-Tips or Z-Ends for pinpoint accuracy.
  • Clean Threads: For the strongest possible bond, ensure metal threads are free from oil, grease, or dirt before applying the locker.
  • Removing Stubborn Screws: If a fastener is difficult to remove after the Z-42 has hardened, simply apply localised heat using a soldering iron or small torch to soften the adhesive, then unscrew as normal.
Technical Specifications Feature Detail
Type Medium Strength (Blue) Anaerobic
Compatibility Metal-to-Metal fasteners only
Removability Removable with standard hand tools
Best For Set screws, engine mounts, axle nuts, and bicycles
Part Number PT42

PT42 Z-42 Blue Thread Locker .20oz (Box of 6) Key Features:

  • Premium grade
  • Formulated for metal to metal
  • Disassembles with hand tools
  • Prevents loosening due to vibration
  • Resistant to petrol and oil etc

PT42 Z-42 Blue Thread Locker .20oz (Box of 6) Tech Specs:

  • Weight: 160g / 0.2oz
  • Shipping Weight: 0.16kg / 0.35lbs
  • Application: Array
  • Works On: Metal - Most Metals_ _
  • Age Recommendation: 14+
  • Colour: Blue
  • Material: Thread Lock


    Key Info:
    • Brand: Zap
    • Part No: 5525735
    • Barcode: 505112113617
    Standard Shipping

    £3.95 to most of the UK

    Express Shipping

    £6.95 to most of the UK

    Worldwide Shipping

    Available at checkout

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