The expansion anchor, is a steel anchor for non-cracked concrete. Its long thread and two anchorage depths make FBN II particularly flexible. In addition to pre-positioning and through installation, this expansion anchor is also suitable for spaced installation.

 

Advantages:

• Specifically designed for applications in dry, unpolluted environments
• High tensile performance in non-cracked concrete allows fewer attachment points and consequently smaller plate sizes
• Long threading allows fastening of objects of various thicknesses and permits possible spaced installation, also allowing off-plumb adjustments
• Remarkably simple through installation is very fast due to the few hammer blows and reduced number of wrench turns required by the anchor to achieve the required torque
• The end of the anchor protects the thread from damage, ensuring faster installation (and eventual removal) of the object to be fastened
• FBN II achieves maximum load capacity with a standard anchor depth. This reduces the number of fastening points needed and allows smaller plates to be used
• Few hammer blows and a very low number of turns to torque ensure easy assembly
• The shaped end protects the thread from damage. and thus ensures faster installation and removal of the object to be fastened
  
   

Assembly:

• Drill through the substrate using a suitable concrete drill bit, observing the diameter prescribed in Technical data for the size of the dowel to be installed
• In the case of holes drilled by rotopercussion, clean the hole itself by blowing (use the ABG pump or alternatively the AB-K bellows)
• In the case of holes drilled with FHD drills (simultaneously performs both drilling and cleaning the hole), no cleaning is necessary
• Tap the dowel deep with a hammer until the washer hits the object to be fastened
• For series installations, the use of the FABS striker is recommended
• Apply the tightening torque prescribed in Technical data by using a torque wrench
• When the tightening torque is applied, the tapered end of the anchor is drawn into the clamp, which expands against the hole wall
• FBN II is also suitable for spaced installation due to the long thread that allows the use of a nut/locknut (not included) to adjust the distance from the support. To bring the dowel into torque, apply tightening to the support through the washer and nut provided