In the world of functional ironmongery, the Barrel Bolt is a fundamental component. It consists of a sliding cylindrical rod (the “shoot”) housed within a guided frame (the “barrel”). Because it is surface-mounted, it is incredibly easy to install and provides a visible deterrent. Whether used at the top of a bathroom door for privacy or at the base of a heavy exterior gate for structural stability, the barrel bolt is designed for reliability.

Our collection features bolts crafted from Grade 304 Stainless Steel (SS304) and solid brass, ensuring they remain rust-proof even in high-moisture environments. Available in a wide variety of lengths—from compact 75mm (3″) versions for cabinets to massive 900mm (35″) architectural bolts for industrial doors—there is a specification to suit every project requirement.

Why the Barrel Bolt is the Professional Choice

Surface-Mounted Simplicity: Requires no complex morticing into the door, making it an ideal DIY upgrade for added security.
Corrosion-Resistant Materials: Forged from SS304 or Solid Brass to prevent seizing, pitting, or rusting in outdoor or coastal conditions.
Multiple Strike Plate Options: Supplied with various receivers—including flat plates for flush frames and angled strikes for recessed doors—to ensure a perfect fit.
Visible Security Deterrent: Provides immediate visual confirmation that a door is locked, offering peace of mind in residential and commercial settings.
High Shear Resistance: Heavy-duty versions feature a thickened shoot diameter to withstand significant force or high wind pressure on gates.
Versatile Orientation: Can be installed horizontally to secure a door or vertically at the top/bottom of a frame to prevent warping or “kick-in” attacks.

Technical Specifications

Feature	Specification
Material Build	Grade 304 Stainless Steel or Solid Brass.
Common Lengths	75mm, 100mm, 150mm, 200mm, 300mm, 450mm, 600mm, 900mm.
Finishes	Satin Stainless Steel (SSS), Polished Chrome, Polished Brass.
Fixing Type	Surface Mounted (Matching Security Screws Included).
Suitability	Gates, Bathroom Doors, Cupboards, and Industrial Entrances.

Professional Installation and Maintenance Tips

A barrel bolt is only as secure as the timber it is attached to. Follow these steps for a professional-grade installation:

Check the “Throw”: Before drilling, hold the bolt in the “locked” position. Ensure the shoot extends at least 15mm to 20mm into the strike plate to provide maximum leverage against force.
Pilot Holes are Essential: When fixing into hardwoods like Oak or Iroko, always drill a pilot hole. This prevents the screw heads from snapping and ensures the barrel sits perfectly flat against the door face.
Allow for Seasonal Movement: Timber doors swell in winter and shrink in summer. When installing the strike plate, leave 1mm to 2mm of vertical play so the bolt can still engage even if the door drops slightly.
Security Screws: For exterior gates, use one-way security screws or star-drive stainless steel screws to prevent intruders from simply unscrewing the bolt from the outside.
Dry Lubrication: To maintain a smooth, “architectural” slide, apply a quick puff of graphite powder or dry PTFE spray into the barrel once a year. Avoid grease, which can attract grit and cause the mechanism to stick.

A Dependable Finish for Every Opening

The Barrel Bolt remains one of the most reliable pieces of hardware in any architect’s toolkit. It combines straightforward mechanical function with a clean, industrial aesthetic. By choosing a high-grade stainless steel or brass bolt, you are ensuring that your doors and gates remain securely fastened and perfectly aligned for years to come.

Upgrade the protection of your large doors and gates with this Barrel Bolt 900mm x 40mm, engineered for maximum strength and reliability. Crafted from durable materials, this bolt ensures a secure locking mechanism with smooth sliding action, making it perfect for residential, commercial, and heavy-duty applications. Its extended 900mm length provides added holding power, ideal for wide or heavy doors, shutters, and gates.

Designed for simple and efficient installation, this Barrel Bolt is suitable for both DIY enthusiasts and professionals. Built to withstand frequent use and harsh conditions, it delivers long-lasting durability and dependable performance. Whether you’re securing external access points or reinforcing interior doors, this bolt combines sturdiness, practicality, and ease of use for complete peace of mind.