Klimas dowel anchor with conical head and Phillips recess 4x40 mm (KRX-8X40)

Klimas dowel anchor with conical head and Phillips recess 4x40 mm (KRX-8X40) is a plastic expansion plug designed for fastening screws in masonry, concrete and hollow building materials. The conical head provides a flush seating for screw heads with a cross (Phillips) drive, while the expansion body creates a secure anchor when the appropriate screw is driven in. This anchor is intended for light to medium-duty fixtures where reliable screw retention and simple installation are required.

Advantages

The dowel features a conical head that ensures consistent screw alignment and reduces the risk of screw cam-out during installation. Its expansion design enables firm anchoring in solid substrates and adequate holding in hollow materials when used with suitable screws. The plastic construction offers corrosion resistance and electrical insulation, making it suitable for indoor applications and environments where metal anchors are undesirable.

Suitable for

• Mounting light fixtures and electrical boxes
• Fixing small fittings and brackets
• Hanging picture frames and lightweight shelves
• DIY repairs and general interior fastening tasks

Key specifications

• Anchor material: plastic (polymer)
• Anchor dimensions: 4 mm diameter × 40 mm length
• Head type: conical (countersunk) head with Phillips recess
• Suitable screw drive: Phillips (cross) screws
• Recommended use: masonry, concrete, and hollow substrates
• Corrosion resistance: non-metallic, corrosion-resistant

How to use

Drill a hole matching the anchor diameter into the substrate at the desired location, ensuring the hole depth accommodates the full anchor length. Clean the hole of dust and debris. Insert the Klimas dowel until the conical head sits flush with the surface. Position the fixture and drive a matching Phillips screw into the anchor until the anchor expands and secures the screw; avoid over-tightening to prevent anchor deformation. For hollow materials, use a screw length that ensures sufficient engagement without causing excessive protrusion.

Usage recommendations

Choose screw diameter and length appropriate for the 4×40 mm anchor and for the material being fixed; follow substrate-specific load limits and use alternative anchors for heavy loads or safety-critical applications.