The 200mm Architectural Barrel Bolt is a heavy-duty security essential, designed to provide a robust physical barrier for both residential and commercial doors. Measuring 200mm (8 inches) in length with a substantial 38mm width, this bolt is engineered for applications where standard domestic hardware falls short. Whether you are reinforcing a solid timber front door, securing a set of French doors, or adding a manual privacy lock to a high-traffic office suite, this bolt delivers a “fit-and-forget” level of reliability.
Crafted from premium materials and finished to architectural standards, 200mm Stainless Steel Barrel Bolt bridges the gap between raw industrial strength and refined interior design.
Engineering Features & Performance
This isn’t a basic DIY-store bolt; it is an “Architectural” grade fitting designed for longevity and smooth mechanical operation.
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Precision-Machined Barrel: The internal channel is machined to tight tolerances, ensuring the sliding bolt moves with a smooth, consistent action without the “rattle” or “sticking” associated with lower-quality stamped steel bolts.
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Heavy-Duty Solid Shoot: The 38mm wide body houses a solid metal shoot that offers deep engagement into the frame. This ensures that the 200mm Stainless Steel Barrel Bolt can withstand significant lateral pressure, making it an effective secondary defense against forced entry.
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Architectural Finish Options: Available in Satin Stainless Steel, Polished Chrome, Matte Black, and Antique Brass. These finishes are applied over a corrosion-resistant base, ensuring the 200mm Stainless Steel Barrel Bolt remains visually striking even in damp environments like bathrooms or sheltered external entries.
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Ergonomic Thumb-Knob: The sliding handle is ergonomically shaped to provide a secure grip, allowing for effortless locking and unlocking even for those with limited hand strength.
Technical Specifications of 200mm Stainless Steel Barrel Bolt
| Feature | Detailed Specification |
| Total Length | 200mm (8 Inches) |
| Body Width | 38mm (Enhanced Stability) |
| Material | Grade 304 Stainless Steel or Solid Brass |
| Throw (Travel) | 35mm – 40mm Deep Engagement |
| Fixing Method | Surface Mounted with Countersunk Fixings |
| Strike Plates | Includes both Flat Plate and Angled Keep |
| Suitability | Internal & External Use |
Strategic Installation Applications
The 200mm length is a “strategic” size in architectural ironmongery, offering enough reach to bridge gaps in older, slightly warped doors while remaining compact enough for modern minimalist aesthetics.
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Double Door (Slave Leaf) Security: For French doors or double internal doors, install one bolt at the top and one at the bottom of the “inactive” door. This creates a rigid frame for the “active” door to lock into.
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Night-Bolt Functionality: Positioned at chest height on a main entrance door, 200mm Stainless Steel Barrel Bolt serves as a “night bolt” that provides total privacy and security that cannot be bypassed by keys or electronic lock-picking tools from the outside.
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Outward Opening Gates: Due to its 38mm width and heavy-duty fixings, it is highly effective for garden gates or shed doors, providing wind resistance and preventing the door from “bowing” under pressure.
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Basement & Utility Rooms: The high-grade finish makes it ideal for areas prone to humidity, providing a secure lock for storage areas that doesn’t rust or seize over time.
Professional Installation Tip: Choosing Your “Keep”
The effectiveness of a 200mm Architectural Barrel Bolt is only as strong as the “keep” (the part it slides into). Most architectural sets provide two options:
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The Surface-Mounted Keep: Used when the door and frame are perfectly flush. It is visible and sits on the face of the frame.
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The Mortice Plate (Recommended): If your door is “inset” or “rebated,” you should “sink” the flat plate into the timber of the frame. By recessing the plate, the bolt is surrounded by the actual wood of the door frame, making it significantly harder to kick in or lever open.
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Pilot Holes: To prevent the screw heads from snapping (especially with stainless steel), always drill 2.5mm or 3mm pilot holes into your timber before final installation.
The 200mm Stainless Steel Barrel Bolt is a reliable and versatile fastening solution, ideal for securing doors, cupboards, gates, and cabinets. With its 200mm length and 38mm width, this barrel bolt provides enhanced strength and durability while maintaining a clean architectural design. Suitable for both modern and traditional settings, it is the perfect choice for adding dependable security to internal and external doors.
Manufactured from high-quality materials, the 200mm Stainless Steel Barrel Bolt offers long-lasting performance and smooth operation. Its sleek yet sturdy design ensures easy installation and seamless integration into residential, commercial, or office environments. Whether used for additional door reinforcement or as a decorative yet practical fitting, this 200mm Stainless Steel Barrel Bolt delivers the perfect balance of strength, style, and everyday functionality.






















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