42.5/42.5 (85 mm) lock cylinder, 8 keys, high security brass finish, anti-picking, anti-drilling, anti-shock and anti-burglary for PVC exterior/entrance patio doors.

ENHANCED DOOR SECURITY: Enjoy enhanced security without costly handle upgrades or additional security features with this Euro-lock door cylinder lock. This high-quality 6-pin cylinder features pick-proof, drill-proof, and shock-proof protection to provide peace of mind and optimal security for your home.

PATENTED SHOCK-PROOF SYSTEM: This 8-key door lock features a unique shock-proof design that does not use retaining pins. This ensures extremely smooth key rotation in the cylinder while blocking access to lifted keys.

DURABLE DRILL-PROOF DESIGN: This 85mm door lock features four drill-proof pins.

Hardened steel perforations on each side. All deadbolts are made of hardened steel with a minimum of 50 HRC brass to ensure maximum durability and prevent intruders from gaining access to the door with additional tools. Designed with at least three anti-theft pins on each side, making access extremely difficult for thieves. Suitable for patio doors and composite doors.