Mechanical cylinder lock Yale Y116B/115/BC integrated key lock, 41.4 mm

Yale Y116B/115/BC is a mechanical cylinder key lock with a compact 41.4 mm cylinder length designed for key-operated security on doors and access points. The integrated cylinder format fits into standard lock cases and provides a straightforward mechanical locking solution without electronics or batteries. Its compact dimensions make it suitable where space is limited or where a precise cylinder length is required for correct door hardware alignment.

Advantages

This mechanical cylinder delivers reliable, low-maintenance operation through proven pin-and-tumbler mechanics. The integrated design simplifies replacement and installation in compatible lock cases while maintaining consistent key operation. Constructed to meet typical residential and light commercial durability expectations, the cylinder offers a compact profile that reduces protrusion from the door face and helps preserve door aesthetics and functionality.

Suitable for

• Exterior and interior doors in private homes
• Apartment and flat entrance doors
• Light commercial premises, small offices and retail units
• Replacement of worn or mismatched cylinders requiring a 41.4 mm length

Key specifications

• Cylinder type: mechanical integrated key cylinder
• Length: 41.4 mm overall cylinder length
• Operation: key-operated pin tumbler mechanism (mechanical)
• Compatibility: fits standard lock cases designed for integrated cylinders of this length
• Finish: standard metal finish suitable for typical door hardware

How to use

Ensure the cylinder length matches the door and lock case before installation. Remove the existing cylinder by loosening the retaining screw on the door edge and withdrawing the cylinder while the cam is aligned by the key. Insert the new Yale 41.4 mm cylinder so the cam engages correctly and tighten the retaining screw to secure it. Test key operation in both directions to confirm smooth engagement of the lock and correct alignment with the door hardware.

Usage recommendations

For reliable long-term performance, use the cylinder in doors with compatible mortise or euro-style cases and avoid exposing the cylinder to excessive moisture or corrosive environments. Periodically lubricate the keyway with a graphite or dry lubricant designed for locks and check mounting screws for tightness after initial use. If higher security features (master keying, restricted keys, or electronic access control) are required, evaluate a more advanced locking solution that integrates those functions.