WALCO V80 GH Spring Retaining Screw Prefab Wall Connector

The WALCO V80 GH Spring Retaining Screw Prefab Wall Connector is a concealed connection system designed for high-precision joining of prefabricated timber walls, CLT wall panels, and panelized building elements. This GH version uses a spring-loaded retaining screw that automatically compensates for positioning forces during assembly, helping guide the screw smoothly into the hot-dip galvanized V-shaped bracket.

The V80 GH provides the highest characteristic load capacity in the WALCO V80 series and is engineered for applications requiring increased load transfer perpendicular to the insertion direction, such as wind loads on exterior wall systems. Once the spring retaining screw engages the bracket, the wall element is stabilized immediately without additional fastening.

Key Features

• Concealed connection for prefabricated timber and CLT walls

• GH version features a spring-loaded retaining screw for easier guided engagement

• Provides the highest load rating within the WALCO V80 product group

• Large V-shaped bracket allows smooth insertion and fast alignment

• Transfers wind loads (perpendicular to the insertion direction) and tension loads

• No recess required for 13 mm or 15 mm sheathing thickness

• Compatible with timber-to-timber, timber-to-steel, and timber-to-concrete joints

• Works with intermediate layers such as OSB, fiberboard, or gypsum sheathing

• Stable connection from the first wall corner, improving assembly efficiency

• Suitable for full workshop prefabrication and rapid jobsite assembly

• Concealed after installation for a clean architectural appearance

• ETA certified for structural use, including hardwood applications

• Prefabricated timber wall systems

• CLT wall connections and high-load exterior wall interfaces

• Modular and panelized construction

• Exterior walls subject to wind loads

• Timber-to-steel and timber-to-concrete transitions

• Residential, commercial, and light industrial timber structures

• Type: WALCO V80 GH Spring Retaining Screw Wall Connector

• Load Capacity (F₂,Rk): 13.7 kN (insertion direction; C24 softwood; per ETA-10/0189 using original KNAPP SK screws)

• Material:

  • Hot-dip galvanized steel bracket

  • GH spring-loaded retaining screw

• Minimum Timber Width: 80 mm

• Compatible Building Materials:

  • Solid timber

  • CLT, LVL, and glulam

  • Steel

  • Concrete

• Sheathing Compatibility: Works without recessing the bracket for 13 mm or 15 mm cladding

• ETA Compliance: Characteristic load values apply only when using original KNAPP screws

• Install the Spring Retaining Screw (GH Version):

  • Pre-drill as required.

  • Drive the spring-loaded retaining screw into the timber element.

  • The spring mechanism allows controlled compression during engagement.

• Mount the Bracket:

  • Position the V80 bracket according to layout plans.

  • Fix the bracket using approved screws in the designated holes.

• Engage the Connection:

  • Align the spring retaining screw with the V-shaped opening.

  • Slide the wall element into place; the spring mechanism assists guided seating.

• Stabilize the Joint:

  • Once engaged, the connection becomes self-stabilizing.

  • No additional fastening is required.

• Final Alignment:

  • Verify the wall is fully seated and properly aligned.