Sunk Slide Flush Bolt 17 x 100mm

In professional joinery, the goal is often to provide maximum security with minimum visual impact. The sunk slide flush bolt is the definitive solution for the “slave leaf” of French doors, double doors, and folding room dividers. Unlike surface-mounted bolts that can look cluttered, the sunk slide flush bolt is morticed directly into the leading edge or the face of the door. When the door is closed, the hardware is entirely hidden from the exterior, and when open, it sits perfectly flush with the timber surface.

By choosing a sunk slide flush bolt, you are investing in a cleaner architectural aesthetic. The smooth “slide and flip” lever mechanism provides a mechanical advantage that makes engaging the bolt effortless, ensuring your secondary door leaf remains an immovable anchor point for the primary locking door.

Why the Sunk Slide System is the Joiner’s Preferred Choice

The primary advantage of the sunk slide flush bolt is its low-profile design. Because it is “sunk” into the door, it eliminates the risk of hardware catching on clothing or interfering with the door’s closing cycle in tight-tolerance frames.

• Flush-to-Door Profile: The sunk slide flush bolt sits level with the timber, preventing snags and maintaining a minimalist look.

• Finger-Tip Lever Action: Features an ergonomic recessed lever that provides high torque for a secure, deep throw.

• Solid Forged Construction: Crafted from high-density brass or stainless steel to prevent bending under significant lateral pressure.

• Internal Spring Tension: Every sunk slide flush bolt includes an internal spring to prevent the bolt from “dropping” or rattling due to gravity.

• Versatile Sizing: Available in lengths from 150mm to 900mm to accommodate standard doors or high-ceiling architectural entryways.

• Architectural Finishes: Available in Satin Chrome, Polished Brass, Matte Black, and Antique Bronze to match your handle sets.

• Enhanced Perimeter Security: Acts as a heavy-duty deadbolt for the secondary leaf, reinforcing the entire door set against forced entry.

Technical Specifications

Achieve a Master-Class Installation

The sunk slide flush bolt is the hallmark of a high-quality door installation. For the ultimate setup, we recommend installing one sunk slide flush bolt at the very top of the door and a second at the bottom. This “two-point” locking system ensures the door remains perfectly rigid, preventing warping over time and providing a superior weather seal against the frame.

Maintenance is non-existent once installed; the internal mechanics of the sunk slide flush bolt are protected by the door itself. A simple wipe of the faceplate during regular cleaning is all that’s required to keep the finish looking brand new. Elevate your joinery today with a sunk slide flush bolt that offers professional-grade strength without the visual bulk.

This 17 x 100mm sunk slide flush bolt is designed to provide extra security for doors while keeping a neat and tidy appearance. It fits flush into the edge of the door, so it does not stand out or affect the overall look. The bolt slides smoothly into place, securing the door firmly to the frame or floor, making it a reliable option for double doors or other doors that need additional fastening. Strongly built and compact in size, it is suitable for both residential and commercial use.

The flush design not only improves appearance but also makes the bolt easy to use and safe, with no protruding parts when not in operation. Installation is straightforward, and once fitted, the bolt requires very little maintenance while continuing to work effectively over time. This practical piece of hardware is ideal for keeping doors steady, secure, and aligned, especially in busy areas where reliable fastening is needed. Durable, functional, and easy to operate, the sunk slide flush bolt is a smart choice for everyday door security.