There are several types of hanging bolts or expansion anchors available, each designed for specific applications and substrate materials. Here are some common types:
Wedge Anchor: Wedge anchors consist of a threaded bolt with a cone-shaped wedge at the end. When the bolt is inserted into a pre-drilled hole in concrete, masonry, or other solid materials and tightened, the wedge expands, creating a secure anchor. Wedge anchors are commonly used in structural applications and heavy-duty installations.
Drop-In Anchor: Drop-in anchors are internally threaded cylindrical anchors with a flared top and a lip at the bottom. They are installed by inserting them into a pre-drilled hole in concrete or masonry and then hammering a setting tool into the anchor to expand it and secure it in place. Drop-in anchors are often used for overhead applications and suspended ceiling installations.
Sleeve Anchor: Sleeve anchors consist of a threaded bolt with a cylindrical sleeve surrounding it. When the bolt is inserted into a pre-drilled hole in concrete, masonry, or other materials and tightened, the sleeve expands, providing a secure anchor. Sleeve anchors are suitable for medium to heavy-duty applications and are commonly used in construction, HVAC, and electrical installations.
Toggle Bolt: Toggle bolts, also known as butterfly anchors, are a type of hollow-wall anchor used for attaching objects to hollow walls, ceilings, or other surfaces where there is no solid backing. They consist of a bolt with spring-loaded wings that expand behind the wall when the bolt is inserted and tightened. Toggle bolts are suitable for lightweight to medium-duty applications such as hanging shelves, mirrors, or artwork.
Chemical Anchor: Chemical anchors, also known as epoxy anchors, are adhesive-based anchors used for bonding threaded rods, studs, or bolts to concrete, masonry, or other materials. They involve injecting a two-part epoxy resin into a pre-drilled hole and then inserting the bolt, which bonds to the surrounding substrate as the epoxy cures. Chemical anchors provide high-strength, vibration-resistant connections and are commonly used in structural, seismic, and heavy-duty applications.
Expansion Anchor: Expansion anchors, also known as mechanical anchors, are versatile anchors used for a wide range of applications in concrete, masonry, and other solid materials. They typically consist of a bolt with a tapered cone or wedge at the end and are installed by inserting them into a pre-drilled hole and tightening the bolt, which expands the anchor to create a secure connection. Expansion anchors come in various styles, including sleeve anchors, wedge anchors, and drop-in anchors, and are suitable for light to heavy-duty applications.
