Cylinder lock insert with knob GERDA WKE1G03030 — brass, double 30/30 mm, 3 keys

The GERDA WKE1G03030 is a high-quality brass cylinder lock insert featuring an integrated internal knob. Designed for standard door thicknesses, this 30/30 mm double cylinder provides a reliable mechanical locking solution. It allows for convenient key access from the exterior while enabling quick and easy locking or unlocking from the interior using the thumb-turn knob, eliminating the need for a key when inside the premises.

Advantages

This cylinder lock insert is constructed from durable brass, ensuring long-term resistance to wear and environmental factors. The integrated knob design significantly enhances user convenience, particularly in residential settings where frequent locking and unlocking from the inside is required. Its reversible mechanism and precise engineering ensure smooth operation and compatibility with a wide range of door types, providing a secure and functional locking experience.

Suitable for

• Residential entrance doors
• Interior doors requiring privacy or security
• Doors where quick exit or internal locking is preferred
• Replacement of standard 30/30 mm cylinder locks

When it may not be suitable

This cylinder is not suitable for doors with a thickness that deviates from the 30/30 mm specification, as it will not fit correctly. It is also not recommended for high-security environments requiring specialized anti-drill or anti-snap protection beyond standard mechanical locking capabilities.

Key specifications

• Material: Brass
• Type: Double cylinder with internal knob
• Size: 30/30 mm
• Included: 3 keys

How to use

To install the cylinder, remove the existing lock insert by unscrewing the fixing bolt located on the side of the door edge. Insert the GERDA cylinder into the lock case, ensuring the cam is aligned to allow the cylinder to slide in fully. Once positioned, reinsert and tighten the fixing bolt securely. Test the operation with the keys from the outside and the knob from the inside while the door is open to ensure smooth movement of the bolt.

What to consider before purchase

• Measure your current door thickness and the distance from the center of the fixing hole to both edges of the door.
• Ensure the 30/30 mm size matches your specific door requirements.
• Verify if your current door hardware is compatible with a cylinder featuring an internal knob.

Usage recommendations

Regularly clean the cylinder with a dry cloth and apply a specialized lock lubricant once or twice a year to maintain smooth operation and prevent internal corrosion. Do not use oil-based lubricants that may attract dust and debris.