Cylinder lock insert with knob GERDA WKE1G03035MOS — brass, 30/35 mm, 3 keys

GERDA cylinder lock insert with knob WKE1G03035MOS is a brass euro-profile cylinder designed for doors that require keyed access from the outside and a knob on the inside. The 30/35 mm split length offers compatibility with many standard entrance and interior doors. Supplied with three identical keys, this compact cylinder provides a simple keyed entry and convenient internal operation using the integrated thumbturn.

Advantages

Constructed from brass, the cylinder offers corrosion resistance and stable mechanical properties for reliable everyday operation. The integrated internal knob eliminates the need for an internal key to lock or unlock from the inside, improving convenience in regular use. The design is compact and suitable for a variety of door preparations where a euro-profile cylinder is required. Delivery with three identical keys ensures immediate use and spare key availability.

Suitable for

• Residential entrance doors with euro-profile lock preparations
• Apartment and flat entrance doors where internal thumbturn operation is preferred
• Light commercial doors requiring keyed external access and internal knob operation

Key specifications

• Material: brass body and components
• Profile: euro-profile cylinder with internal thumbturn (knob)
• Dimensions: 30/35 mm (asymmetric length for door thickness adaptation)
• Operation: keyed from outside, thumbturn from inside
• Accessories: three identical mechanical keys included

How to use

Install the cylinder into a compatible euro-profile lock case following the door manufacturer's instructions and ensuring the correct orientation of the 30/35 mm split to match the door thickness. Secure the cylinder with the central fixing screw and test smooth operation by turning the external key and the internal knob several times. Keep the keys in a safe place and use the internal thumbturn for daily locking and unlocking from the inside without needing a key.

Usage recommendations

For durable performance, check that the cylinder length matches your door thickness before installation and tighten the fixing screw to the manufacturer’s recommended torque. Periodically lubricate the cylinder with a graphite or silicone-based lock lubricant and avoid oil-based products. Keep spare keys in separate secure locations and consider professional installation if you are unsure about door preparation or alignment.