641D Bolt

Model 641D Latch Body – Product Overview

The Model 641D is a highly versatile and cost-effective latch designed for flexible installation requirements. It features a durable iron housing available in a wide range of surface finishes and colors, allowing it to blend seamlessly with various door styles while maintaining an economical price point. The unit is equipped with a standard 25mm diameter cylinder core compatible with S-groove keys.

A distinctive feature of the Model 641D is its 2-turn locking mechanism. Unlike standard single-turn latches, this model requires the key to rotate two full circles to fully extend or retract the locking bolt. The 90mm stainless steel bolt moves in two distinct stages, advancing 12mm per turn (totaling 24mm of travel over two rotations). This two-stage operation offers enhanced control and security. Additionally, the bolt material is replaceable, allowing users to switch to iron bolts if specific cost or compatibility needs arise. The latch is fitted with a 120mm faceplate, ensuring robust coverage and secure mounting.

Key Configurations:

• Model 641D: cylinder: 25mm diameter, panel 120mm — bolt length: 90mm (Stainless Steel), 2-turn operation (12mm per turn), replaceable material option

Customization options include:

• Iron housing available in diverse surface finishes and color choices to match project aesthetics.
• Bolt material selectable between standard stainless steel or optional iron (replaceable design).
• Unique 2-turn key mechanism providing a two-stage bolt throw (12mm per rotation).
• Standard 120mm panel length for secure mounting.

The Model 641D combines a unique two-stage locking action, material flexibility, and affordable pricing, making it an ideal high-value solution for applications requiring specific operational sequences and precise fitment.