WALCO V80 KS Slotted Hole Prefab Wall Connector

The WALCO V80 KS Slotted Hole Prefab Wall Connector is a concealed connection system engineered for joining prefabricated timber walls, CLT wall panels, and main beams with high precision and minimal on-site effort. This KS version uses a collar screw with an integrated washer, which engages into a hot-dip galvanized V-shaped receiving bracket.

The slotted-hole bracket provides enhanced installation tolerance, offering up to 15 mm vertical adjustment and ±2 mm horizontal correction, allowing the installer to compensate for irregularities in floor height, panel position, or sheathing thickness. The result is a reliable, fast, and repeatable assembly suitable for timber-to-timber, timber-to-steel, and timber-to-concrete wall connections.

Key Features

• Concealed connection system for prefabricated timber and CLT wall elements

• KS version incorporates a collar screw with integrated washer for secure engagement

• Slotted-hole design allows height adjustment up to 15 mm and width compensation of ±2 mm

• V-shaped bracket guides the collar screw smoothly into position during installation

• Enables precise alignment of wall panels, even when tolerances exist on site

• Supports wind loads (perpendicular to insertion direction) and tension loads

• No recess required when used with 13 mm or 15 mm sheathing

• Suitable for intermediate layers such as OSB, fiberboard, or gypsum-based materials

• Fully concealed when installed, maintaining clean architectural lines

• Optimized for complete workshop prefabrication and rapid jobsite assembly

• ETA certified for structural applications, including hardwood

• Prefabricated timber wall systems

• CLT wall-to-wall or wall-to-beam interfaces

• Modular and panelized building systems

• Exterior wall junctions, interior partitions, and connection of finishing walls

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

• Lightweight commercial structures and residential timber construction

• Type: WALCO V80 KS Slotted Hole Wall Connector

• Load Capacity (F₂,Rk): 7.1 kN (insertion direction; pine C24; per ETA-10/0189 using original KNAPP SK screws)

• Material:

  • Hot-dip galvanized steel bracket

  • Steel collar screw with integrated washer

• Adjustment Range:

  • Vertical: ±15 mm

  • Horizontal: ±2 mm

• Minimum Timber Width: 80 mm

• Compatible Building Materials:

  • Solid timber and engineered wood (CLT, LVL, glulam)

  • Steel

  • Concrete

• Sheathing Compatibility: No recess required for 13 mm or 15 mm panel thickness

• ETA Compliance: Load values apply only when using original KNAPP screws per ETA-10/0189

• Install the Collar Screw (KS Version):

  • Pre-drill if required.

  • Fasten the collar screw with integrated washer directly into the timber element.

• Prepare the Slotted-Hole Bracket:

  • Fix the bracket using two approved screws.

  • Confirm bracket position relative to layout marks and wall geometry.

• Engage the Connection:

  • Align the collar screw with the V-shaped opening.

  • Slide the prefabricated wall panel downward and inward until fully seated.

• Adjust Tolerances:

  • Use the slotted-hole movement to correct height or width deviations up to the allowed ranges.

• Finalize Assembly:

  • Verify the joint is fully engaged and stable.

  • No additional fastening is required once positioned.