FB4 Reversible slamlock replacement body only

The FB4 Reversible slamlock replacement body only is a direct replacement unit for FB4 fire brigade slamlocks, widely used across the UK for secure and compliant emergency access. This body-only unit is ideal for maintenance teams, fire safety contractors, and landlords looking to replace worn or damaged FB4 lock bodies without needing to purchase a full new unit.

This slamlock is reversible, allowing for left- or right-hand installation, making it versatile for a range of applications including communal doors, riser cupboards, service cabinets, and restricted access points where emergency access is required.

Key Features:

• ✅ FB4 slamlock pattern – replacement body only

• ✅ Reversible design – suitable for both left- and right-hand doors

• ✅ Compatible with standard FB4 keys (not included)

• ✅ Fire brigade-approved pattern for controlled access

• ✅ Ideal for public buildings, flats, and commercial properties

• ✅ Durable build – made for regular use by fire and service personnel

The FB4 key (sold separately) allows authorised emergency services to gain quick access without damage or delay, ensuring compliance with UK fire regulations. This lock body is built from robust, corrosion-resistant materials to ensure reliable operation in high-traffic or high-risk environments.

⚠️ Note: This listing is for the replacement body only – no key or strike plate is included. For a full lockset, see our complete FB4 Slamlock kits.

Maintain safety, ensure access, and stay compliant with this reliable replacement for your FB4 emergency access system.

Brand

Frelan Hardware