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Wedge Anchor

Wedge Anchors, also known as Expansion Anchors, are characterized by having an expansion clip. Application of torque to the anchor, expands the clip on the cone shaped bolt, resulting in pressure on the inner side of the hole. This leads to necessary friction between the expansion clip & the base material, completing the installation.


Suitable For

  • Concrete
  • Dense Natural Stone

Key Features

  • Affordable and Easy installation
  • Dual embossments on each clip segment: Enables clip to undercut into the concrete thereby increasing follow-up expansion should a crack occur.
  • Spring-steel clip on anchors:In addition to superior fatigue resistance, a spring-steel clip offers "memory" that contributes to the anchor's performance if the hole increases in size because of a crack.
  • High Resistance Values

Critical Installation Recommendations

  • Ensure correct expansion of the anchor by applying recommended torque values
  • Maintain cleanliness of the hole
  • Hammer in the bolt only after aligning the nut with the taper end section on the head of the anchor body to prevent any thread damage
  • As a rule of thumb, we recommend a minimum standard of ten (10) anchor diameters for spacing between anchors and five (5) anchor diameters from an unsupported edge.

Installation Instructions

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Installation Instructions

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Anchor Part Material
Anchor Part Material
Anchor Bolt Carbon Steel (Grade 4.6)
Expansion Sleeve Spring Steel
Nut (Hex Nut) Carbon Steel
Washer(Plain) Carbon Steel
Finish Electroplated Zinc

Installation Data

Parameter Legend Unit M8 M10 M12 M16
Drill Hole Diameter d (mm) 8 10 12 16
Cutting Diameter of Drill Bit dcut ≤ (mm) 8.35 10.45 12.5 16.5
Drill Hole Depth ho (mm) 50 65 78 104
Dia of Clearance Hole dh (mm) 10 12 14 18
Recommended Anchorage Depth hnom (mm) 40 50 60 80
Fixture Thickness t (mm) 0-55 0-80 0-125 0-154
Tightening Torque Tinst (Nm) 15 30 50 100
Min. Base Material Thickness (mm) 100 120 140 170

Performance Data ( For a Single Anchor)

  • Concrete C 20/25
  • No edge distance and spacing influence
Parameter M8 M10 M12 M16
Ultimate Tensile Load (kN) 12.7 17.7 23.1 49.2
Utimate Shear Load (kN) 8.8 16 21.4 48.3
Recommended Tensile Load (kN) 2.4 4.4 5.7 12.3
Recommended Shear Load (kN) 2.9 4 5.3 12.0