Even high-quality concrete anchors will lose capacity because of wrong installation. We summarize the most frequent mistakes found in construction sites.
First mistake: incomplete hole cleaning. Dust and mortar residue stay inside the hole, preventing anchor expansion and reducing holding force. Second: wrong hole diameter. Oversized hole leads to slip; undersized hole damages anchor during installation. Third: insufficient hole depth.
Other errors include installing anchors into cracked concrete, improper tightening torque, using wrong anchor type for hollow substrate. Following installation specification is the best way to guarantee anchor performance.