HOBES K421 Mortise Lock 90/30 mm Universal Handing Nickel-Plated for Slim Doors

Product Overview

The HOBES K421 is a narrow mortise lock designed for use with cylinder inserts, offered in a 90/30 mm backset configuration. Suitable for both residential and commercial internal or external doors, it features universal handing and a nickel-plated finish for enhanced resistance in environments with variable weather conditions. The lock is produced by HOBES, a brand established with over 60 years of presence on the Czech market.

A key differentiator of the K421 is its universal handing design, allowing installation on left- or right-opening doors without the need for additional modifications. This flexibility simplifies procurement and inventory management for wholesalers and installers handling projects with diverse door types. Particularly recommended for bulk supply to fit-out contractors, door manufacturers, or property developers seeking a versatile lock solution.

Key Features

• Narrow mortise design ? fits slim door profiles where standard locks cannot be installed


• Backset 90/30 mm ? suitable for specialized door construction needs


• Nickel-plated finish ? provides increased resistance to corrosion and wear


• Universal handing ? compatible with both left- and right-opening doors for inventory simplification


• High durability ? engineered for long service life in both residential and commercial buildings


• Includes escutcheon and mounting screws ? all necessary hardware for installation provided

Technical Specifications

• Type: Mortise lock narrow


• Backset: 90/30 mm


• Finish: Nickel-plated


• Handing: Universal (left/right)


• Weather Resistance: High (suited for outdoor and indoor use)


• Included Accessories: Escutcheon, mounting screws

Applications

Suitable for slim-profile timber, metal or PVC doors in residential apartments, office interiors, light commercial premises, and utility spaces. Compatible with left- and right-hand opening doors and suitable for both retrofitting and new installations. Recommended for OEM door manufacturing, renovation projects, and property maintenance where versatility and resistance to weather are required.

Packaging & Shipping

Standard export packaging. Each unit includes the mortise lock, matching escutcheon, mounting screws, and basic installation instructions.