The 76mm Project Tubular Latch is the most common “standard-backset” option for modern interior doors. The 76mm (3-inch) case length results in a 57mm backset (the distance from the door edge to the center of the handle spindle). This traditional sizing is ideal for larger door stiles, ensuring that lever handles or knobs are positioned centrally and provide plenty of clearance for the user’s hand against the door frame.

Forged with Grade 304 Stainless Steel (SS304) forends, this 76mm Project Tubular Latch combines a clean, modern aesthetic with the mechanical resilience needed for thousands of daily operations. Whether specified for a new housing development or a commercial office refurb, the 76mm Project Latch offers the perfect balance of cost-efficiency and architectural quality.

Why the 76mm Project Latch is the Professional Choice

Standard 57mm Backset: The preferred dimension for most UK internal doors, providing an aesthetically pleasing handle position that prevents “knuckle-clipping” on the door frame.
Double-Spring Mechanism: Features a reinforced internal spring specifically designed to support the weight of modern lever-on-rose handles, preventing the “saggy handle” look common with inferior latches.
Guided Bolt Operation: The latch bolt is precision-engineered to glide smoothly over the strike plate, reducing friction and noise for a quieter living or working environment.
Grade 304 Stainless Steel Faceplates: Naturally resistant to corrosion and wear, ensuring the visible hardware remains pristine in kitchens, en-suites, and utility rooms.
Universal Handing: The bolt features a curved face that works for both left and right-handed doors without the need for manual reversal.
Rapid Installation: The 76mm Project Tubular Latch body allows for fast fitting using a standard 25mm spade bit, significantly reducing labor time on large-scale projects.

Technical Specifications of 76mm Project Tubular Latch

Feature	Specification
Case Length	76mm (3 Inches).
Backset	57mm (Edge to Spindle Center).
Material Build	SS304 Faceplates / Zinc-Plated Steel Body.
Spindle Size	Standard 8mm x 8mm.
Finish	Satin Stainless Steel (SSS).
Compliance	Suitable for Residential & Light Commercial use.

Professional Installation for Maximum Longevity

To ensure the 76mm Project Tubular Latch performs reliably for years, follow these essential installation steps:

Level Bore-Hole: Use a drill guide to ensure the 25mm hole for the latch body is perfectly level. If the latch is tilted, the spindle will bind against the follower, making the handle stiff or causing it to stick.
Flush Morticing: Chisel out the recess for the forend and the strike plate until they sit perfectly flush with the timber. A protruding latch plate can cause the door to “bounce” rather than latch securely.
Spindle Alignment: Ensure your handle spindle passes through the center of the latch follower. Even a minor misalignment can put uneven pressure on the latch spring, leading to premature mechanical failure.
Strike Plate Depth: Ensure the cavity behind the strike plate is deep enough for the bolt to fully extend. If the bolt hits the wood behind the plate, the handle may not return to the fully horizontal position.
Dry Lubrication: Apply a small amount of dry PTFE spray to the latch bolt every 12 months. This maintains the “silk-smooth” closing action and prevents the bolt from sticking during seasonal temperature changes.

The Standard for Modern Internal Doors

The 76mm Project Tubular Latch is the essential component that defines the daily “feel” of a door. It provides the silent, reliable, and effortless operation that homeowners and tenants expect. By choosing a high-quality SS304 76mm latch, you are investing in a durable solution that minimizes maintenance callbacks and enhances the overall quality of the building’s interior.

This 76mm Project Tubular Latch bolt-through is designed to provide reliable and smooth operation for internal doors in both residential and commercial applications. The 76mm backset ensures comfortable handle positioning, while the bolt-through fixing offers enhanced strength and stability, making it ideal for new installations or replacement projects. It works seamlessly with lever handles or door knobs, ensuring secure and consistent performance every day.

Constructed from durable, high-quality materials, this 76mm Project Tubular Latch is built to withstand frequent use while maintaining long-lasting functionality. Its bolt-through design guarantees a precise and secure fit, reducing the risk of loosening over time. Complete with all fixings for quick and straightforward installation, this latch delivers a professional and dependable hardware solution for doors requiring strength, reliability and smooth operation.