Barrel bolt – 150mm x 40mm

In the world of functional ironmongery, the 150mm Barrel Bolt is a fundamental component. It consists of a solid sliding cylindrical rod housed within a reinforced guided frame. Because it is surface-mounted, it requires no complex morticing into the door, making it an ideal “fit-and-forget” solution for adding privacy to bathroom doors or stabilizing external gates against wind loads.

Our 150mm version is manufactured from Grade 304 Stainless Steel (SS304), ensuring it is naturally rust-proof and corrosion-resistant. This makes it equally suitable for luxury interior suites, damp utility rooms, or perimeter fencing. Finished in premium Satin Stainless Steel (SSS), it offers a modern, brushed appearance that hides fingerprints and maintains its professional look even with frequent daily use.

Why the 150mm Barrel Bolt is the Professional Choice

• Versatile 150mm (6″) Profile: The “goldilocks” size—large enough to provide meaningful security, yet compact enough to sit neatly on narrow door stiles or cupboard frames.

• Solid-Core Shoot: Constructed with a thickened diameter bolt to provide high shear resistance against forced entry or heavy door warping.

• Grade 304 Stainless Steel Construction: Naturally resistant to oxidation, ensuring the mechanism won’t seize or “pit” over time, even in outdoor applications.

• Precision-Guided Action: Machined to tight tolerances to ensure the bolt slides smoothly without the rattling or “play” common in cheaper pressed-steel alternatives.

• Universal Strike Plate Options: Typically supplied with both a flat plate for timber frames and a recessed bridge or socket for floor and masonry applications.

• Ergonomic T-Bar Grip: The oversized knob is designed for a comfortable, high-torque grip, allowing for effortless operation even with wet hands.

Technical Specifications of 150mm Barrel Bolt

Professional Installation and Maintenance Tips

To ensure your 150mm Barrel Bolt provides a lifetime of security, follow these essential installation steps:

1. Marking the Throw: Extend the bolt fully into the “locked” position against the frame before marking your holes. Ensure there is 1mm of clearance at the back of the strike plate to prevent the bolt from “binding” during seasonal door expansion.

2. Pilot Holes for Longevity: Stainless steel screws are incredibly tough but can be brittle. Always drill a pilot hole 70% of the screw’s diameter to prevent the heads from snapping off in hardwoods like Oak or Iroko.

3. Strike Plate Recessing: For a truly “architectural” look, use a sharp chisel to recess the strike plate flush into the door frame. This not only looks professional but prevents the plate from being easily pried off by an intruder.

4. Vertical Orientation: If installing the bolt vertically (at the top of a door), ensure the friction guides are tight enough to prevent the bolt from sliding down under its own weight when in the “unlocked” position.

5. Dry Lubrication Routine: Avoid using sticky oils or WD-40, which attract dust and grit. A quick puff of graphite powder or dry PTFE spray into the barrel once a year will maintain a silk-smooth action.

The Standard for Reliable Security

The 150mm Barrel Bolt is the definitive “mid-range” hardware solution. It bridges the gap between small decorative cupboard bolts and massive industrial fasteners, providing a heavy-duty feel that is scaled perfectly for residential and commercial doors. By choosing a 150mm SS304 bolt, you are investing in a security detail that is as durable as it is aesthetically refined.

Add extra security to your doors and gates with this 150mm Barrel Bolt, designed for strength, reliability, and smooth performance. Manufactured from durable materials, this 150mm Barrel Bolt provides a solid locking mechanism, ideal for both interior and exterior doors. Its compact yet strong design makes it suitable for a wide range of applications, from household use to commercial setups.

With simple installation and a sturdy build, this 150mm Barrel Bolt is perfect for professionals and DIY enthusiasts alike. It is engineered to resist daily wear, offering long-term durability and dependable security. Whether used on gates, sheds, or doors, this bolt combines practicality, strength, and ease of use to deliver reliable protection and peace of mind.