The term expansion bolt refers to an assembly that comprises three fastening components including expanding sleeve, threaded bolt, and perfectly sized nut. When these are employed together the force produced after tightening the bolt and nut pushes the expanding area of the sleeve outwards, gripping the material the sheathing is embedded into. Because of their specific fastening system, expansion bolts are most suitable for connection between porous materials (stone, brick, concrete).
Expansion bolts are fasteners used in brickwork materials that enlarge once introduced into a predrilled dump in the stonework. The expansion of the bolt is accomplished in different ways. These bolts are designed for different applications throughout different industries. Expansion bolts come in a variety of configurations and types. Each type of expansion bolt has unique features and benefits.
Key points about expansion bolts:
Expansion bolts can be used to secure heavy objects to walls or floors.
These can handle vertical and horizontal loads.
By tightening the bolt, the nut on the opposite end pulls into the shell, expanding it outward and wedging
it inside the hole in the wall or floor.
Yellow passivation coating makes Expansion bolts rust-resistant.
Requires a spanner or socket wrench to fasten or remove the bolt.
Ideal for heavy-duty fastening of steel and wood structures walls and floors.
These fasteners are used for steel plates and similar steel structures to concrete. These bolts have threaded ends for engagement nuts and a unique mechanism. Expansion bolts are available in different sizes, types, and coatings based on the scope of application. these are coupled with washers and nuts.
Different types of expansion bolts are:
Lifetime expansion bolts: as the name suggests, these bolts are designed never to be removed. These can be identified by the steel cone covering the head part of the bolt.
Permafix expansion bolts:
This type of bolt is commonly used to secure grills and bars at the place.
Anti-tamper expansion bolts:
These bolts are mostly made of steel. These can be installed and removed through an anti-tamper tool.