Schlosszylinder – Pretensioned AB Key Brass Cylinder A pretensioned brass cylinder for reliable locking and broad compatibility. Available in multiple lengths and designed for AB key anti-theft systems, this cylinder combines durable construction, an extended core and tailpiece for consistent operation, and enhanced security features to help protect against theft. Key benefits Security: Built with enhanced anti-theft features and the AB key system to reduce the risk of unauthorized access. Reliability: Pretensioned locks and an extended core/tailpiece deliver smooth, dependable operation and better alignment with hardware. Durability: Solid brass construction resists wear and provides long-term performance in residential and commercial use. Compatibility: Fits standard door preparations and AB key systems; extended tailpiece improves fit for thicker doors and non-standard backsets. Flexibility: Multiple length options let you match the cylinder to door thickness and layout without modifying existing hardware. Specifications Product: Schlosszylinder with pretensioned locks Key system: AB key anti-theft Core and tailpiece: Extended core and extended tailpiece for reliable operation and compatibility Material: Brass Finish: Brass, color code 105 52.5 5 Available lengths: 65 mm, 70 mm, 80 mm, 90 mm, 115 mm Suitable for: Residential and commercial doors; fits standard door preparations and AB key systems Practical applications New home entry installations that require a secure, durable cylinder compatible with AB key systems. Replacements in multi-unit buildings where door thickness and backset vary—choose the appropriate length to restore secure operation without changing hardware. Renovations where an extended tailpiece is needed to align the cylinder with existing lock mechanisms and door hardware. What to check before ordering Measure door thickness and backset to select the correct cylinder length (65, 70, 80, 90, or 115 mm). Confirm compatibility with your AB key system and existing lock hardware. Verify finish requirements (brass, color code 105 52.5 5) if aesthetic match is important. This Schlosszylinder provides a practical, durable, and secure option for standard door installations and AB key systems, with size options and an extended tailpiece to simplify fitting in a variety of settings.