Winkhaus N-tra 35/55 Cylinder Lock Nickel Class 6.2 C Patent Dimple Key 5 Keys

Product Overview

The Winkhaus N-tra 35/55 nickel cylinder lock insert delivers advanced mechanical access control for commercial and residential doors, meeting class 6.2 C certification. Its robust construction includes stainless steel housing pins, up to 8 passive horizontal blocking pins, and anti-drill bars for enhanced physical security. The system features a paracentric key profile and an extended key head to allow compatibility with a wide range of security escutcheons.

A differentiating advantage of this SKU is its patent-protected dimple key system, safeguarded from unauthorized duplication until 2029. This minimizes key management risks and prevents security breaches caused by illicit key copies, which is a critical requirement for facility managers and B2B buyers handling access in offices, multi-tenant buildings, and institutional environments. The product package, including five patented dimple keys and a sealed code card, is particularly well-suited for projects where compliance and tamper-evidence in procurement are required.

Key Features

• 6 double-sided tumbler pins per side ? provides a high number of lock combinations and resistance to picking


• Up to 8 passive, springless horizontal blocking pins ? increases protection against manipulation


• Anti-drill hardened steel pins ? protects cylinder against drilling attacks


• Paracentric keyway profile ? complicates unauthorized key copying and picking


• Patent-protected dimple key (until 2029) ? unauthorized duplication is legally prevented until expiry


• Extended 13 mm key bow ? ensures compatibility with thick or security escutcheons


• Solid sintered steel one-piece cam with non-toxic anti-corrosion finish ? for long-term durability

Technical Specifications

• Cylinder Length: 35/55 mm


• Material: Nickel-plated outer body, stainless steel housing pins, sintered steel cam


• Certification: Class 6.2 C


• Key Profile: Paracentric, horizontal, symmetric dimple key


• Number of Keys Included: 5


• Drill Protection: Hardened steel anti-drill bars


• Key Protection: Patent valid until 2029


• Number of Active Pins: 6 per side (5 lengths)


• Passive Blocking Pins: Up to 8, springless, horizontal

Applications

Suitable for securing main entrances and internal doors in commercial, office, institutional, and high-security residential buildings. Approved for use in access control upgrades, multi-user facilities, and projects requiring certified mechanical locking systems with patent-protected key control. Recommended for installations involving security escutcheons and for B2B buyers needing traceable access management and audit-proof lock procurement.

Packaging & Shipping

Each cylinder lock is supplied in a sealed, tamper-evident box containing five dimple keys, a code card, and mounting screw. Packaging guarantees integrity and unbroken chain of custody; not returnable if seal is breached.