Anchor bolt Koelner/Rawlplug KD 10 x 120 mm with long expansion zone and hex screw, pack 10

Mechanical anchor bolt Koelner/Rawlplug KD 10 x 120 mm with long expansion zone and hex screw, pack of 10, is a metal fixing designed for medium-duty anchoring in both solid and hollow base materials. The KD anchor features an extended expansion sleeve that increases anchorage length and contact area, improving load transfer in thicker substrates or where deeper embedment is required. Supplied with a hex (6-sided) screw, the set is intended for reliable attachment of fixtures such as rails, brackets and other structural elements where secure, removable connections are needed.

Advantages

The long expansion zone provides greater anchoring depth and improved distribution of expansion forces, reducing stress concentration in the substrate. The metal construction and hex screw allow for higher shear and tensile capacity compared with non-metallic fixings of similar size. Packaged as a set of 10, the product offers consistent performance across multiple fixings and simplifies procurement for medium-scale projects.

Suitable for

• Mounting rails and metal brackets to concrete or solid masonry
• Fixing fixtures to hollow block or aerated concrete where longer expansion length is beneficial
• Medium-duty structural attachments and load-bearing brackets
• Applications requiring removable or adjustable connections

Key specifications

• Diameter: 10 mm
• Length: 120 mm
• Expansion zone: extended/long design for deeper anchorage
• Material: metal anchor body with metal hex screw
• Head type: hex (6-sided) screw head
• Pack quantity: 10 pieces

How to use

Drill a hole in the base material to the specified diameter and depth, ensuring the hole is clean and free of dust. Insert the anchor sleeve into the hole until the flange rests against the surface, then fit the fixture and thread in the hex screw. Tighten the screw to the manufacturer's recommended torque to activate the expansion zone and secure the anchor. For hollow substrates, ensure the sleeve fully engages the cavity and expands correctly to achieve the required holding capacity.

Usage recommendations

Verify base material suitability and required embedment depth before installation. Use appropriate drill bits and cleaning tools for the substrate, and apply the recommended torque to avoid under- or over-tightening. For safety-critical or high-load applications, refer to technical data from the manufacturer and, if necessary, consult a structural engineer.