Maco shootbolt gearbox and cover mk1 window lock
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
See our full range:
Description
Maco shootbolt gearbox and cover mk1 window lock
Maintaining the integrity of your property requires reliable window hardware that performs consistently under pressure. The Maco shootbolt gearbox and cover mk1 window lock stands as a benchmark for durability and precision engineering. This replacement component serves as the central hub of your window locking mechanism, ensuring that your shootbolt system engages effectively every time you turn the handle.
Designed to fit seamlessly into existing frame profiles, this unit addresses the common wear and tear associated with aging window systems. When your window becomes difficult to operate or fails to latch securely, it is often this specific internal gearbox that has reached the end of its functional life. Investing in high quality components ensures that your home remains safe and energy efficient throughout the changing seasons.
At Doorfit, we understand that professional installers and homeowners alike require parts that fit correctly the first time. This specific model is engineered to exact standards, allowing for a swift installation process that restores your window to its original operational state. By choosing this genuine hardware, you avoid the frustrations of poor fitment and the recurring costs of inferior aftermarket alternatives.
Understanding the mechanical function
The internal mechanics of this window locking system rely on a sophisticated arrangement of teeth and levers. When you rotate the window handle, the internal mechanism transforms that rotational force into lateral movement. This movement then drives the shootbolts located at the top and bottom of the window sash into their respective keeps.
This Maco shootbolt gearbox and cover mk1 window lock is crafted to manage significant tension and stress. The gearbox housing serves as a protective casing for the internal cogs, preventing debris and environmental moisture from interfering with the smooth movement of the metal parts. Because these components are subject to thousands of cycles over their lifetime, the alloy composition is specifically chosen to resist shearing and fatigue.
Professional Tip: Always check the condition of your window keeps when replacing the gearbox. If the keeps are damaged, even a perfectly functional gearbox will fail to provide the security you expect from your locking system.
Key operational benefits
- The precision internal gearing allows for a smooth and satisfying action whenever the window is locked or unlocked.
- This design minimizes the physical effort required by the user, making it ideal for large or heavy window sashes.
- The included cover ensures that the internal mechanism is protected from dust and debris, which significantly extends the service life of the hardware.
- The 22mm backset configuration is a common standard, allowing for broad compatibility across many existing uPVC window profiles.
- Each component is rigorously tested to ensure that it meets strict security standards and withstands common forced entry attempts.
Step by step operational workflow
Understanding how you interact with this component helps in identifying potential issues early. To engage the locking system, you begin by ensuring the window sash is pulled firmly against the frame. As you rotate the handle, the internal pinion of the gearbox meshes with the rack of the locking strip.
This engagement causes the shootbolt rods to extend vertically. You should feel a consistent level of resistance that indicates the bolts are engaging the frame keeps correctly. Once the handle reaches the horizontal position, the gearbox locks the rods in place, creating a rigid seal that prevents the window from being forced open from the outside.
When opening the window, the sequence is reversed. You rotate the handle, which retracts the shootbolts into the sash profile. This release of tension allows the window to swing or tilt freely without binding. A well maintained system should feel fluid, with no grinding noises or sticking points during this transition.
Ergonomic health and safety considerations
Hardware that functions with high efficiency contributes directly to user comfort. When a window gearbox begins to fail, it often requires the user to apply excessive force to the handle to lock the window. This leads to unnecessary physical strain on the wrist and hand, which can be particularly challenging for elderly users or those with limited grip strength.
By replacing a worn unit with this new model, you restore the intended ergonomic operation. This ensures that the window can be secured with minimal physical exertion, reducing the risk of musculoskeletal fatigue. Furthermore, a smoothly operating window is less likely to be left partially open, which improves your home security and reduces the risk of accidental injury caused by faulty mechanisms.
Commercial ROI and long term value
For facility managers and property owners, the Maco shootbolt gearbox and cover mk1 window lock offers a high return on investment. Replacing a single broken part is significantly more cost effective than replacing the entire window unit. By acting promptly when a lock starts to fail, you protect your building envelope from draughts and moisture ingress.
This proactive maintenance approach also prevents damage to other parts of the window assembly. A sticking gearbox places undue stress on the handle and the shootbolt rods, which can lead to further component failure if left unaddressed. Selecting high quality, durable hardware ensures that your assets are protected and that your maintenance cycles are kept to a minimum.
Technical specifications
| Feature | Specification |
|---|---|
| Backset | 22mm |
| Compatibility | Maco MK1 Shootbolt Systems |
| Housing Material | Reinforced Zinc Alloy |
| System Type | Gearbox with protective cover |
| Operational Type | Manual handle driven |
| Finish | Corrosion resistant coating |
Ensuring correct installation and maintenance
Installation requires only basic hand tools, but attention to detail is paramount. First, remove the handle to access the screws holding the locking strip in place. Carefully retract the strip just enough to reveal the gearbox housing.
Once you have removed the faulty unit, compare it against the new component to ensure the orientation and mounting points match perfectly. Secure the new gearbox into the sash and ensure that the teeth align correctly with the locking strip. Test the action before replacing the window handle to verify that everything moves freely without any obstruction.
To keep the system in peak condition, we recommend a light application of silicone based lubricant once a year. Avoid using heavy greases that can attract dirt and cause the gears to clog. By following these simple maintenance steps, you will ensure the longevity of your window hardware for many years to come.
Why choose Doorfit
We pride ourselves on providing trade quality components to both professionals and DIY enthusiasts. Every product in our catalogue is vetted for reliability and performance. If you are unsure if this part is the correct fit for your specific window, our team is always happy to provide guidance based on your measurements.
Do not compromise on the security of your home or office. Choose hardware that is built to last and designed for everyday use. Order your replacement today and experience the peace of mind that comes with a perfectly functioning window locking system.
Specification
| Window Operation | Hinged |
|---|---|
| Faceplate Width | 16mm |
| Gear Type | Centre |

