Impact anchor bolt

The impact anchor bolt is a common type of fastener thanks to its simple design and ease of use. It is intended for installation in dense wall and floor materials: concrete, solid brick, and it can also be installed in natural stone. This type of fastener combines the functions of an anchor and a nail.

It consists of a hollow metal rod, one end of which is made as a threaded stud for a nut and washer, while the other end is a sleeve with a four-petal expansion segment. Installing such an anchor requires pre-drilling a hole in the material, with a diameter matching the diameter of the expansion sleeve.

Technical description of the impact anchor bolt

Installation — the anchor bolt is driven into a hole in the base material, after which a nail is driven into it. The sleeve’s petals spread apart. The nut only serves to secure the attached part. The anchor is held in the material through an expansion effect: the sleeve increases in diameter and is reliably fixed in the hole by friction, while gaining resistance to mechanical loads. It is difficult to pull out even with considerable force, ensuring a reliable attachment for structures.

Impact anchor bolts have become widely used due to several features:

• Simple installation. Fitting does not require complex tools or additional equipment.
• Reliable fixation. This method is suitable for installing a wide variety of structures, which are held securely in the base material.
• The ability to use large-diameter anchors for fastening heavy structures. A hole of the required size in the material can be drilled using a diamond core bit.

Materials

Anchors of this type are made of steel with a zinc anti-corrosion coating; impact drive-in bolts made of brass are also common. FLOK offers fasteners selected from a wide range of sizes.