OBI K3 Mortise Lock DIN 18251 Class 3 Right-Hand Brushed Steel Silent Latch

Product Overview

The OBI K3 mortise lock is installed in external and internal doors where certified mechanical security and quiet operation are required. This lock is compliant with DIN 18251, making it suitable for commercial and residential environments seeking standardized hardware. Its construction features a right-hand orientation and brushed steel finish, suitable for doors with dimensions matching 72/55/20.

A key differentiator of the OBI K3 is the inclusion of Teflon elements in the latch mechanism, which minimizes the noise generated during door closing. This is particularly valuable for B2B buyers procuring for office, hospitality, or multi-unit residential projects where acoustic comfort is prioritized. Recommended for bulk procurement in commercial renovation and new construction projects needing DIN-certified mortise locks with silent closing latches.

Key Features

• DIN 18251 certified ? ensures compliance with European lock standards for commercial and residential sectors
• Teflon latch elements ? silent closing reduces operational noise in offices, hotels, and apartment corridors
• Right-hand orientation ? suits door leafs based on construction requirements
• Brushed steel finish ? corrosion resistance and modern appearance for heavy-use areas
• Three mechanical class ? provides enhanced security for entrance and internal doors
• Dimensions 72/55/20 ? compatibility with standard mortise lock cutouts
• Suitable for internal and external doors ? expands application versatility in multiple building types

Technical Specifications

• Norm: DIN 18251
• Orientation: Right (KL prawy)
• Finish: Brushed steel
• Dimensions: 72/55/20
• Mechanical Class: 3
• Latch: Teflon equipped

Applications

Used in external and internal doors of commercial buildings, offices, apartments, hotels, and institutional facilities. Suitable for environments where certified security and noise reduction are required, including corridor, entrance, and meeting room doors. Recommended for bulk installation in new builds or refurbishments needing DIN 18251 compliance.

Packaging & Shipping

Standard export packaging. Each unit includes the lock body and installation accessories. Bulk shipping options available for project procurement.