Frame plug Koelner/Rawlplug KKS 8 x 80 mm with short expansion zone and PZ screw, 16 pcs

Koelner/Rawlplug KKS 8 x 80 mm frame plugs with a short expansion zone are designed for reliable fastening of window and door frames, timber elements and light profiles. Each pack contains 16 plugs paired with PZ-head screws for direct installation. The plug’s short expansion zone concentrates the anchoring force close to the fixture face, making it suitable for shallow embedment in solid and hollow substrates and reducing the risk of damage to thin materials.

Advantages

The plug features a short expansion zone that provides strong hold near the head and reduces stress on the substrate at greater depths. Supplied screws match the plug geometry and have a PZ drive for quick, slip-resistant installation. The design allows use in a variety of wall types, including concrete, brick and hollow block, with consistent positioning and repeatable results. Packaging of 16 pieces supports small installation jobs or staged repairs.

Suitable for

• Fixing window and door frames to masonry and concrete
• Securing timber and light metal profiles
• Mounting thresholds and trim where shallow embedment is required
• Repairs and retrofit installations in renovation projects

Key specifications

• Plug diameter: 8 mm
• Plug length: 80 mm
• Short expansion zone concentrated near the plug head for shallow anchoring
• Included screws: PZ-head screws matched to plug length and diameter for direct fixing
• Suitable for use in solid and hollow substrates such as concrete, brick and hollow block
• Pack quantity: 16 sets (plug + screw)

How to use

Drill a hole of the correct diameter and depth for the 8 x 80 mm plug, keeping the drill perpendicular to the surface. Clean the hole from dust and debris before insertion. Insert the plug until its collar sits flush with the fixture surface, position the frame or profile, and drive the supplied PZ screw through the fixture into the plug. Tighten the screw until the plug expands and clamps the fixture securely; avoid over-tightening to prevent deformation of the plug or damage to the substrate.

Usage recommendations

Use appropriate drill bits for the substrate; for hollow materials consider using a sleeve or backing if the substrate is very thin. For load-critical or structural applications verify suitability with relevant standards and, where required, use appropriate anchors and installation methods. Store the plugs and screws in a dry place to prevent contamination and ensure consistent performance.