In the hierarchy of structural ironmongery, the 600mm Barrel Bolt represents the peak of surface-mounted security. At 2 feet in length, this bolt provides an expansive “throw” and an extended fixing plate, allowing it to bridge the significant gaps and structural shifts common in heavy timber or steel-framed gates. It is the primary choice for anchoring the base of heavy double-leaf gates or securing the top of high-clearance warehouse doors.

Manufactured from Grade 304 Stainless Steel (SS304), our 600mm version is completely rust-proof and resistant to harsh environmental pollutants. This makes 600mm Barrel Bolt the standard for external use in coastal regions, high-moisture agricultural settings, or industrial zones. Finished in premium Satin Stainless Steel (SSS), it maintains a clean, professional appearance that resists the scuffing and “pitting” associated with lower-grade materials.

Why the 600mm Barrel Bolt is the Professional Choice

Extreme 600mm (24″) Reach: Provides unmatched leverage and structural stability for the tallest doors and heaviest timber gates.
Reinforced Solid-Core Shoot: Features an oversized bolt diameter (typically 16mm to 19mm) to offer maximum shear resistance against impact or extreme weather events.
Grade 304 Stainless Steel Construction: Guaranteed to remain functional without seizing or rusting, even when exposed to direct rain and salt spray for years.
Extended Multi-Point Fixing: The 24-inch barrel includes 8 to 10 fixing points, distributing the mechanical load across a larger surface area to prevent the bolt from being pried loose.
Heavy-Duty Strike Options: Supplied with a reinforced floor socket (for vertical “drop bolt” use) and a heavy-gauge bridge keep (for horizontal mounting).
High-Torque Cranked Handle: The oversized T-bar handle is designed for a full-handed grip, providing the torque needed to slide the heavy shoot through weather-swollen timber.

Technical Specifications of 600mm Barrel Bolt

Feature	Specification
Total Length	600mm (24 Inches).
Material Build	Grade 304 Stainless Steel (SS304).
Finish	Satin Stainless Steel (SSS).
Bolt Diameter	16mm – 19mm (Heavy Industrial Profile).
Fixing Type	Surface Mounted (Heavy Duty Security Fixings Included).
Application	Driveway Gates, Industrial Units, Stable Doors.

Professional Installation and Maintenance Tips

A 600mm Barrel Bolt of this magnitude requires a robust installation to perform effectively. Follow these professional guidelines:

Substantial Anchoring: When used as a “drop bolt” for a driveway gate, ensure the floor socket is set into a concrete pad or a solid stone threshold. This creates a rigid anchor point that prevents the gate from “rattling” or bowing under wind pressure.
Deep Pilot Holes: Because 600mm bolts utilize large-gauge screws, always drill a pilot hole 75% of the screw diameter. This is critical in hardwoods like Iroko or Oak to ensure the stainless steel screws drive home without snapping.
Seasonal Expansion Gaps: Heavy timber gates move significantly with the weather. Install the strike plate with 3mm to 4mm of vertical play to ensure the 600mm shoot can always engage, even if the gate sags slightly in the winter.
Three-Point Security: On large double doors, install one 600mm bolt at the top and one at the bottom of the “inactive” leaf. This turns the door into a structural part of the frame, providing a solid foundation for the main lock.
Dry Lubrication: For industrial bolts, avoid grease, which attracts grit and can gum up the barrel. Use a dry PTFE spray or graphite powder twice a year to maintain a smooth, “architectural” slide.

The Ultimate Standard for Structural Security

The 600mm Barrel Bolt is the definitive hardware solution for the most demanding openings. It provides a level of physical and visual security that provides immediate peace of mind for high-value properties and industrial sites. By choosing a 600mm SS304 architectural bolt, you are investing in a long-term stabilization and security detail that is truly built to withstand the elements and the test of time.

Strengthen the security of your doors and gates with this 600mm Barrel Bolt, designed for durability, smooth operation, and dependable performance. Manufactured from strong materials, this bolt provides a firm locking mechanism suitable for residential and commercial use. Its 600mm length offers extra stability, making it ideal for medium to large doors, gates, shutters, and sheds.

Easy to install and built for long-term use, this 600mm Barrel Bolt is a practical choice for both DIY users and professionals. The heavy-duty construction ensures resistance against wear and daily use, offering reliable protection indoors or outdoors. Whether used to reinforce an entry door or to secure an outdoor gate, this bolt delivers the perfect balance of sturdiness, practicality, and long-lasting reliability.