External insulation anchor bolts (anchoring components) consist of an expansion joint and an expansion sleeve, or only an expansion sleeve. They are mechanical fasteners that connect the insulation system to the base wall through friction generated by expansion or mechanical locking.
In the installation of external wall insulation panels, to enhance system safety, various types of anchor bolts (anchoring components), metal brackets (or angle steel metal brackets), or connectors are often used for reinforcement, depending on the insulation board material or finish type.
Anchor bolts are specialized mechanical fasteners used to fix hot-dip galvanized welded wire mesh, alkali-resistant fiberglass mesh, insulation boards, and fireproof insulation strips to the base wall.
Anchor bolts should preferably be made of steel grades with good plasticity, such as Q235 and Q345 steel, and should not be made of high-strength steel. Anchor bolts are non-standard parts, and due to their large diameter, they are often made of unprocessed round steel, similar to C-grade bolts, and are not machined using high-precision lathes. Anchor bolts at exposed column bases often use double nuts to prevent loosening.
