Prefabricated Wall Connectors for Modular and Timber Construction 11

KNAPP prefabricated wall connectors provide fast, secure, and repeatable connections for modular and timber wall systems. Designed for efficient on site assembly, WALCO connectors simplify panel installation while supporting reliable load transfer, long term stability, and clean concealed detailing.

This category includes the WALCO V60 and WALCO V80 concealed wall connector systems plus the WALCO Z40 wall connector for visible wall joints. These connectors are optimized for prefabricated timber walls, CLT wall panels, and panelized building assemblies where speed, alignment, and tolerance compensation are critical.

What Prefab Wall Connectors Do

Prefab wall connectors are used to align and connect wall elements quickly, especially in offsite and modular construction. The WALCO system allows wall panels, partitions, and wall to beam interfaces to be positioned and engaged with minimal additional fastening. Connections can be designed to transfer loads perpendicular to the insertion direction, such as wind loads on exterior wall systems, as well as tension forces depending on the connector type.

• Fast assembly for panelized and modular wall systems
• Repeatable alignment for clean wall lines and accurate layouts
• Concealed installation for a hardware free finished appearance
• Compatible with timber to timber, timber to steel, and timber to concrete interfaces

WALCO V60 and V80 Concealed Wall Connector Systems

WALCO V connectors use a V shaped receiving bracket that guides a retaining screw, collar screw, or collar bolt into position during installation. This makes engagement fast and predictable, even on large wall runs. The system supports workshop prefabrication and helps stabilize the structure from the first wall corner during on site assembly.

V80 Series for Higher Loads and Wall Widths

The WALCO V80 system is designed for wall elements with a minimum timber width of 80 mm and is commonly specified where higher load performance is required. V80 connectors are widely used in CLT and timber wall construction, including exterior walls subject to wind loads.

V60 Series for Compact Wall Elements

The WALCO V60 system is designed for wall elements with a minimum timber width of 60 mm. It is well suited for lighter wall assemblies and compact panel conditions while still providing a concealed and repeatable engagement.

Tolerance Compensation and Slotted Hole Options

Some WALCO V80 versions are available with a slotted hole bracket to improve on site adjustability. This supports vertical adjustment up to 15 mm and horizontal correction of plus or minus 2 mm, helping installers compensate for variations in floor height, panel position, or intermediate layers. This is especially useful in modular construction where speed is important but real world tolerances still exist.

Connector Types in This Category

WALCO connectors are offered in multiple engagement types to match project requirements for adjustability, alignment, and installation workflow.

• EH retaining screw for precise pre alignment before final engagement
• GH spring retaining screw for guided engagement and high load performance
• KS collar screw with integrated washer for stable engagement and simple installation
• VK screwed collar bolt for repeatable mechanical engagement

WALCO Z40 Wall Connector

WALCO Z40 is a visible connector designed for wall to wall joints in timber frame and CLT construction. Two identical plates interlock along guide slopes to create an immediately load bearing connection. It requires only minimal milling on one side and installs with SK screws featuring an integrated drill point for fast installation.

Applications

• Prefabricated timber wall systems and panelized construction
• CLT wall to wall and wall to beam interfaces
• Modular construction and offsite manufactured wall elements
• Exterior wall junctions subject to wind loading
• Interior partitions and finishing walls
• Timber to steel and timber to concrete transitions

Design Notes and Fasteners

Characteristic capacities depend on connector type, timber properties, installation geometry, and the use of original KNAPP fasteners where required by approval data. Follow the installation guide and design tables for the correct screw selection and layout. Where slotted hole adjustment or intermediate layers are used, confirm detailing and edge distances to meet project requirements.

Why Choose KNAPP Prefab Wall Connectors

KNAPP WALCO connectors are built for speed, accuracy, and repeatable results in modern timber construction. Whether you are assembling CLT wall panels, modular timber walls, or panelized partitions, these connectors help reduce on site labor, improve alignment, and deliver a clean concealed finish that matches architectural expectations.