Sash Hook Fasteners

Traditional Window Security with Style

Sash hook fasteners are essential hardware for securing sliding sash windows. Designed to hold the top and bottom sashes tightly together, they enhance both security and energy efficiency by reducing draughts and preventing movement.

Our range includes classic and contemporary styles in brass, chrome, satin nickel, black, and antique finishes, making it easy to match your existing ironmongery. Ideal for restoration projects, period homes, or simply upgrading worn hardware.

✅ Key Features:

• Designed for vertical sliding sash windows

• Simple and secure hook & catch locking mechanism

• Available in traditional and modern finishes

• Easy to fit and operate

• Helps prevent rattling, drafts, and unauthorised opening

• Complements existing window lifts and sash stops

📘 FAQs – Sash Hook Fasteners

❓ What is a sash hook fastener?

A sash hook fastener is a two-part fitting used to secure the meeting rails of a sash window. One part is a hook, the other a catch – when engaged, they hold the sashes shut.

❓ Are they suitable for modern sash windows?

Yes – they work on both traditional timber sash windows and modern versions, as long as the sashes are designed to slide vertically and have flat meeting rails.

❓ What materials and finishes are available?

We offer fasteners in solid brass, chrome, satin chrome, nickel, antique brass, and black iron, to suit any décor from classic to contemporary.

❓ Can these be locked with a key?

Most hook fasteners are non-locking, but we also offer locking sash fasteners for added security, particularly for ground-floor or street-facing windows.

❓ How do I install a sash hook fastener?

They are surface-mounted with screws (usually included). Position the hook on the bottom sash and the catch on the top sash so they align when closed.

❓ Do they help with insulation?

Yes – they pull the sashes tightly together, helping reduce drafts, rattling, and unwanted movement, which can improve thermal performance.

❓ What’s the difference between a hook fastener and a Brighton fastener?

A hook fastener uses a curved hook that fits into a catch, while a Brighton fastener has a rotating arm that clamps the sashes together. Both serve the same purpose but offer different aesthetics.