Key benefits Direct replacement for a wide range of letterbox and cabinet locks — fits common mailbox systems from Renz (models manufactured up to 2006), Decayeux and similar designs. Secure, durable construction — high-strength die-cast zinc housing with chrome/nickel plating resists wear and gives long service life. Quick, low-skill installation — replace the cylinder in minutes without special tools. Adjustable latch for precise alignment — locking latch can be set in 15° steps; closing action 90° ensures consistent operation. What it does and how it helps Replaces worn or lost cylinder locks in mailboxes, furniture, lockers, showcases and control cabinets, restoring secure access without replacing the entire fitting. Compact dimensions make it suitable where space is limited while still delivering reliable locking performance. Works with panels and doors 1–2 mm thick, so it fits typical mailboxes, metal or plastic cabinets and lightweight furniture. Key specifications Housing: high-strength die-cast zinc with chrome / nickel plated finish Thread diameter: 23.5 mm Total installation length: approx. 22 mm (measured from collar to end screw) Installation length to locking tongue: 17 mm Compatible panel/material thickness: 1–2 mm Locking latch: adjustable in 15° increments Closing distance: 90° Easy installation (step-by-step) 1. Loosen the fastening nut and remove the locking latch. 2. Insert the cylinder into the installation opening until the collar sits flush. 3. Attach and tighten the fixing (fastening) nut. 4. Re-fit and set the locking latch to the required angle. No special tools or modifications required if your opening matches the listed dimensions. Typical applications Mailboxes / letterboxes: direct replacement cylinder for Renz (up to 2006), Decayeux and compatible models. Showcases and display cabinets: secure doors on retail displays or exhibition cases where compact locking is required. Control cabinets, lockers and furniture: replacement lock for small cabinets, electrical enclosures and office/storage lockers with thin panels (1–2 mm). Why choose this cylinder Designed to match common mailbox/cabinet dimensions for straightforward replacement. Robust die-cast zinc construction and plated finish for corrosion resistance and lasting appearance. Adjustable latch and compact length make alignment and retrofitting simple and reliable. Compatibility reminder Confirm your existing lock’s thread diameter (23.5 mm) and the panel thickness (1–2 mm) before purchasing. Specifically suitable as a replacement for Renz letterboxes manufactured up to 2006, Decayeux systems and other compatible fittings. If your mailbox or cabinet matches these dimensions and compatibility notes, this cylinder offers a fast, durable and accurate replacement option without replacing the entire lock assembly.