Window Winder Black | Left Hand | Lockable – Keyed Alike | 150mm Restricted Chain

Ordering more than one? They’re all keyed alike. Every lockable TradeBase winder in your order is supplied keyed alike — one key opens them all, so you’re not juggling a different key for every window.

Designed to work seamlessly with both timber and aluminium window systems, this black restricted window chain winder by TradeBase offers smooth functionality, reliable keyed locking, and a fixed 150mm restricted opening — enough for good airflow, while keeping the window from opening wide.

Key Features

• Clean black finish — matches black and dark powder-coated window frames and hardware
• Folding handle — folds flat to sit neatly behind blinds, curtains and furnishings, then swings out for easy winding
• Anti-sag, self-tensioning chain — the self-tensioning design keeps the chain taut, preventing sag and wind-shudder rattle
• Versatile Compatibility: Suitable for timber and aluminium awning and casement windows with butt or hook hinges or non-friction stays.
• Easy Operation:
  • Smooth, reliable operation with a folding ergonomic handle
  • Convenient through-flyscreen operation
• Secure and Restricted:
  • Zinc-plated steel chain
  • Stainless steel fixing screws included
  • 150mm restricted opening — lets fresh air in while keeping the opening narrow, adding a layer of security and deterrence when you leave windows open. Like any window restrictor, it’s a deterrent rather than a guarantee against forced entry.
  • Where NCC fall-prevention or pool-barrier compliance is required, choose the 100mm restricted version instead (pool barriers require a 100mm maximum)
• Built to Last:
  • Robust diecast zinc body and mechanism for durability
  • Mild steel zinc-plated chain for everyday corrosion resistance
• Flexible Options:
  • Lockable keyed alike — order two, five or fifty and every lockable winder opens with the same key
  • Compatible with retrofitting older models

Ideal For

• A little more security while ventilating — leave windows open for airflow overnight or while you’re out, with the opening kept narrow as an added deterrent
• Ground-floor and low windows — windows within 2m of the ground, where strata and NCC fall-prevention opening limits don’t apply
• Rentals and commercial buildings — limit how far windows swing out over paths and walkways
• Ventilation control — stops windows slamming or over-opening in gusty conditions

Specifications

• Colour: Black
• Handle Side: Left Hand
• Chain Type: Mild steel, zinc-plated
• Chain Length: 150mm (restricted)
• Locking: Lockable, keyed alike (all lockable winders in an order share one key)
• Handle: Folding ergonomic handle
• Fixings: Stainless steel fixing screws included
• Dimensions: 280mm (L) (265mm between hole fixing centres) x 46mm (D) x 47mm (H). Back 273mm long.
• Sash Weight: Supports up to 35kg
• Compliance: Exceeds Australian window lock standards for security and durability

What’s Included

• 1 x Black window chain winder (Left Hand)
• 150mm restricted chain
• Stainless steel fixing screws
• Keys — and where you order multiple lockable winders, they are all keyed alike

Compatible Brands

• Direct replacement for most Whitco®, Stegbar®, Boral®, Dowell®, Trend®, AWS®, Bradnam’s® and Wideline® window winders

Also Available

• Black winder — left hand, 100mm restricted (NCC / pool-barrier compliant)
• Black winder — left hand, 300mm full opening lockable
• Black Right Hand version — 300mm full opening lockable

Additional Benefits

• Minimal Interference: Folding low-profile handle keeps clear of blinds and curtains
• Weather-Resistant finish suited to Australian conditions