Architectural Barrel Bolt – 450mm x 38mm

The 450mm Stainless Steel Barrel Bolt is a heavy-duty security powerhouse designed for large-scale applications where standard hardware simply cannot provide the necessary leverage or reach. Measuring a substantial 450mm (18 inches) in length, this 450mm Stainless Steel Barrel Bolt is engineered for the most demanding environments—from securing oversized industrial warehouse doors to providing a rock-solid manual lock for heavy timber driveway gates.

Crafted with an architectural focus, this 450mm Stainless Steel Barrel Bolt combines the raw strength of a structural security fitting with the refined finish of high-end ironmongery. It is the definitive choice for preventing door “bowing” and ensuring a secure, multi-point closure on tall or heavy leaves.

Industrial Strength & Architectural Precision

At 18 inches long, the mechanical integrity of the bolt is paramount. This 450mm Stainless Steel Barrel Bolt is designed to remain perfectly straight and operate smoothly over its entire travel distance.

• High-Leverage Security: The extreme length of the 450mm bolt allows it to bridge significant gaps between a door and its frame. On large gates that may sag or shift due to ground movement, this bolt provides the necessary “reach” to ensure a secure engagement every time.

• Structural 38mm Backplate: To support the weight and torque of an 18-inch sliding shoot, the backplate is reinforced and extra-wide. This provides a stable foundation that distributes the load across multiple fixing points, preventing the timber from splitting under stress.

• Solid Stainless Steel Shoot: The internal sliding rod is manufactured from a thick, solid stainless steel rod (typically 12mm+ in diameter). This provides immense shear strength, making it nearly impossible to bend or break during a forced entry attempt.

• Climate-Proof Durability: Typically forged from Grade 304 Stainless Steel, this bolt is immune to the “red rust” and seizing that affects zinc-plated alternatives. It is perfectly suited for exposed coastal locations, agricultural buildings, and external perimeter gates.

Technical Specifications of 450mm Stainless Steel Barrel Bolt

Primary Applications for 18-Inch Hardware

A bolt of this magnitude is a specialized tool used to solve specific structural and security challenges in large-scale joinery.

1. Industrial & Warehouse Doors: For large sliding or folding doors, the 450mm bolt provides a fail-safe manual lock. It is often used as a “Night Bolt” to ensure doors remain immobile after hours.

2. Tall Timber Gates: Tall gates are prone to warping at the top or bottom. Installing a 450mm bolt at the furthest extremity pulls the gate leaf flush against the post, maintaining the gate’s shape and integrity.

3. “Drop Bolt” for Driveways: When mounted vertically at the base of a gate, it functions as a heavy-duty drop bolt. The 18-inch length allows the user to operate the bolt without bending down to ground level.

4. Stable & Agricultural Doors: The oversized handle is designed for ease of use in rugged environments, providing a secure closure for livestock stalls or equipment sheds that can be operated even while wearing heavy work gloves.

Professional Installation Guide: Managing the “Long Throw”

Installing an 18-inch bolt requires more precision than a standard 4-inch version to prevent the mechanism from “binding.”

• The Straight-Edge Rule: Before screwing the bolt down, use a straight edge to ensure the door surface is perfectly flat. If the door has a slight curve, the long barrel may flex and cause the bolt to stick. Use stainless steel washers behind the screw holes to “shim” the bolt until it slides with zero resistance.

• Reinforced Fixings: For a bolt of this size, standard wood screws are often insufficient for high-security areas. We recommend using M5 or M6 stainless steel screws with a minimum depth of 40mm to ensure the bolt cannot be pried off the door.

• Vertical “Drop” Engagement: If using as a ground-engaged drop bolt, install a Dust-Excluder Floor Socket. This prevents the hole in the ground from filling with dirt and stones, which would otherwise prevent the 450mm bolt from fully engaging.

• Maintenance: Every six months, wipe the solid shoot with a silicone-based lubricant. This ensures the 60mm “throw” remains effortless and prevents any friction-wear on the internal barrel.

The 450mm Stainless Steel Barrel Bolt is a robust and reliable door fastening solution, designed to provide strong security and durability for larger doors, gates, cupboards, and storage areas. Measuring 450mm in length and 38mm in width, this 450mm Stainless Steel Barrel Bolt ensures a secure hold while maintaining a sleek and professional architectural design. Its high-quality construction makes it ideal for both internal and external applications, combining strength and style in one practical solution.

This 450mm Stainless Steel Barrel Bolt is easy to install and operate, with a smooth sliding mechanism that allows for effortless locking and unlocking. Perfect for residential, commercial, and industrial spaces, it offers reliable reinforcement for doors while enhancing their overall appearance. Built to withstand regular use, this barrel bolt provides a practical, long-lasting, and visually appealing security solution for any setting.