Anchor Fasteners :
Anchor fasteners are devices used to attach or secure objects to a surface, often by providing stability and support. These fasteners are particularly crucial in construction and engineering applications where the attachment needs to withstand various forces, such as tension, shear, or vibration. Anchor fasteners come in various types, each designed for specific purposes and materials.
Here are some common types of anchor fasteners:
Wedge Anchors: These anchors feature a wedge-shaped design and are commonly used in concrete and masonry. They expand and create a tight grip when tightened.
Sleeve Anchors: Sleeve anchors consist of a threaded rod and a cylindrical sleeve. When the nut is tightened, the sleeve expands, creating a secure hold in materials like concrete, brick, or block.
Toggle Bolts: Toggle bolts are useful for anchoring objects to hollow walls or ceilings. They consist of a bolt with collapsible wings that open once behind the wall to provide stability.
Drop-In Anchors: Drop-in anchors are typically used in concrete and are set into pre-drilled holes. When a bolt is threaded into the anchor, it expands and grips the sides of the hole.
Expansion Anchors: This category includes various anchors that expand against the base material to create a secure connection. This can include wedge anchors, sleeve anchors, and others.
Plastic Anchors: These are often used in softer materials like drywall. They are inserted into pre-drilled holes, and as a screw is driven into them, they expand to grip the surrounding material.
Chemical Anchors: Chemical anchors involve the use of adhesives or resins to bond the anchor with the base material. They are often used in applications where traditional mechanical anchors may not be sufficient.
It's crucial to choose the right anchor fastener for a specific application based on factors such as the type of material being anchored to, the load requirements, and the environmental conditions. Always follow the manufacturer's guidelines and ensure proper installation for optimal performance and safety.
Anchor Fasteners Anchor fasteners, as the name suggests, are used in the residential and industrial construction industry. They are often used to attach anything to base materials like concrete or brick. They are often inserted in the base material by drilling holes and securing themselves tightly in place. Anchor fasteners are adept at handling shear and pull-out forces with ease, ensuring that the assembly stays intact, no matter what.
Anchor Fasteners
Types of anchor fasteners
Wedge-type anchors
Wedge-type anchors have varying threading patterns throughout their bodies. The anchor’s head is a circular expansion clip with undercut grooves that are firmly attached to the body of the device. These anchors are made of stainless steel, carbon steel, or alloy steel, which makes them incredibly sturdy and suited for use in harsh temperatures. They have exceptional corrosion resistance as well. The diameter of the head must be measured first, followed by the length of the anchor above the material surface, to evaluate the hold of these anchors. The appropriate anchor with its threads should have this length subtracted from it. This can be used to assess whether the anchor has been installed appropriately by comparing it to the embedment length. The main purpose of these fasteners is to secure objects to a concrete base. Consequently, they have more strength, which increases their capacity for bearing loads.
Threaded shield anchors
For fixing parts in concrete, threaded shield anchors are used. They have more strength as a result, which improves their capacity for bearing loads. Special equipment is needed to secure shield anchors to the concrete since there is a great likelihood that the concrete may crack under intense strain. Applications where the assembly is subjected to extreme shear stresses, vibrations, and side pressure are suitable for these anchors. Double expansion shield anchors and lag screw expansion shield anchors are two of the various shield anchor kinds that are available. Single expansion shield anchors are a fantastic choice if you are unsure of the holding power of a soft or unknown material because they do not harm the surface being used and still offer a good level of hold.
Pin-type anchors
The interior of pin-type anchor bolts has holes that can go all the way around the anchor. The driving pin is placed into the upper part. Additionally, that is where the threaded anchor is placed. These pin-type fasteners employ the friction-locking concept to support loads. Corrugations on the exterior surface may be used to prevent spinning and provide proper balance. They often take the form of dichromate that has been zinc-plated. In soft brickwork, pin-type anchor bolts are used to lessen the impact of pressure and vibration.
Wall plug anchors
Wall plugs are plastic parts that allow screws to be fastened to walls. It is utilised in situations where a screw needs to be fastened to fragile materials that cannot hold the load on the screws. Wall plugs are frequently installed in walls to help sustain the load on the screws. Although these plugs can be made of a variety of materials, plastic is frequently chosen because of its softness. These wall plugs are easy to install and basic. They are placed into the pilot hole with room to spare, and the centre screw is tightened. The plastic tightly encloses the screw after it has been screwed into the plug. The fact that these screws may be accurately used for larger sizes of screws while having different diameters is another benefit of using them.
Rawl anchors
A general-purpose anchor bolt for usage in concrete, stone, and brickwork is the Rawl bolt. It forms a strong bond with the substrate to create a high-performance fastening that aids in load distribution and transfer, and is then fastened by turning the appropriate torque. The usage of these anchors for huge buildings proved to be both inexpensive and simple to install when bought in bulk. It is offered in stainless steel, carbon steel, and alloy steel to withstand more abuse and increase its corrosion resistance.
L and J bolt anchors
Despite being predominantly associated with the construction sector as the real heroes, foundation bolts like the L and J bolts have applications across many other industries. These bolts are made up of pre-threaded bars with unique slashings. These bolts are available in a wide variety of sizes, ranging from ten inches to as much as eighty inches. It is offered in stainless steel, carbon steel, and alloy steel to withstand more abuse and increase its corrosion resistance.