90 mm Double Entry Brass Lock Cylinder Door

90 mm double-entry copper lock cylinder

This 90 mm European profile lock cylinder is designed for replacing or fitting a door requiring reliable closing and good long-term durability. Made of copper with a copper core, it is suitable for both domestic use and certain professional environments. Its double-entry configuration allows opening and closing from both sides with a key, making it a practical solution for many front doors, service doors, secure interior doors or secondary access points.

Thanks to its copper metal design, this lock barrel offers good resistance to wear caused by repeated handling. Its 90 mm format meets the needs of installations requiring a longer cylinder, particularly on thicker doors or those fitted with specific hardware. This locksmithing component is a suitable choice for users looking for a simple, functional replacement part compatible with common door hardware standards.

Key features

• Copper body with copper core for good long-term durability
• Double-entry cylinder, can be opened from both sides with a key
• 90 mm length suitable for many door configurations
• Format commonly used in locksmithing for replacing a worn barrel
• Simple use for house doors, outbuildings or service doors
• Moderate weight for easier handling and installation

Recommended uses

This copper lock cylinder can be installed on various joinery fitted with a system compatible with a European profile. It is suitable for securing access in a practical way while maintaining smooth everyday use. Its double-entry operation is particularly useful when you want to be able to lock or unlock from the inside as well as from the outside using a key.

• Residential front door depending on lock compatibility
• Cellar, garage or outbuilding door
• Office, workshop or technical room door
• Replacement of an old or damaged cylinder
• Door hardware renovation project

Product features

This 90 mm barrel stands out for its copper structure and copper core, a material appreciated in the locksmithing field for its stability and corrosion resistance in standard use. The double-entry version allows classic access management with a key on both sides. This configuration is often chosen for doors requiring full locking without an internal thumbturn.

Its total length of 90 mm makes it a cylinder suited to thicker doors or handle sets with rose or backplate requiring precise projection. Before purchase, it is recommended to check the required length on the inside and outside to ensure correct fitting and proper alignment with the mortice lock.

Technical parameters

• Product name: 90 mm double-entry lock cylinder
• Product type: lock barrel, European cylinder
• Material: copper, copper core
• Colour: copper tone
• Function: locking and unlocking a door with a key from both sides
• Configuration: double entry
• Cylinder length: 90 mm
• Weight: 0.286 kg
• Indicative package dimensions: 90 x 17 x 33 cm
• Installation: integration into a compatible door lock
• Compatibility: to be checked according to door thickness, lock type and existing fittings

Installation and usage advice

Before installation, measure your old lock cylinder precisely as well as the thickness of the door. Also check the position of the fixing screw and the profile type of your lock. For optimal operation, the cylinder must not protrude excessively on either side of the door. During fitting, insert the cylinder into the lock case, align the cam if necessary, then secure the assembly with the screw provided for this purpose.

To extend the life of the mechanism, it is advisable to use the keys gently and avoid greasy lubricants. For maintenance, use a product specifically designed for lock cylinders. As this model is a technical hardware part, checking compatibility before ordering is important to guarantee installation without adaptation.

Package contents

• 1 90 mm double-entry copper lock cylinder

This door cylinder is a practical replacement solution for maintenance, repair or renovation work. Its simple design, 90 mm format and copper core make it a reliable component for many residential or utility locksmithing needs.