What is a wedge expansion anchor?
Wedge Anchors. Wedge anchors are designed to anchor objects into concrete. They are installed into a pre-drilled hole, then the wedge is expanded by tightening the nut to securely anchor into the concrete.
Is an expansion anchor the same as a wedge anchor?
Wedge Anchor – This anchor utilizes an expansion clip at the working end and provides excellent consistent holding values of any type of expansion anchor in solid concrete. It is manufactured in 9 different diameters and in many lengths to meet most concrete fastening requirements.
Is a wedge anchor a mechanical anchor?
A wedge anchor is a mechanical type expansion anchor that consists of four parts: the threaded anchor body, the expansion clip, a nut, and a washer. These anchors provide the highest and most consistent holding values of any mechanical type expansion anchor.
What is a seismic wedge anchor?
The Trubolt® seismic wedge type anchor body is made from carbon steel that is zinc plated. One end of the threaded body is threaded with national coarse threads, the other end is necked down with an expansion clip that is round with undercut grooves and permanently affixed to the anchor body.
Will wedge anchors crack concrete?
Drop-in anchors and wedge-type anchors, for example, are now “unqualified” for cracked concrete. In addition, most adhesive anchors are not acceptable for use in cracked concrete.
What grade are wedge anchors?
Wedge anchors are available in many types of finishes and material grades. The four most common types are: zinc plated low grade carbon steel, hot dipped galvanized, 304 stainless steel, and 316 stainless steel.
What is the difference between anchor bolt and expansion bolt?
The anchor bolt allows a smooth screw to be stressed by mechanical locking force; The expansion bolt mainly generates friction by pressing, and the force is applied.
How deep is a wedge anchor?
A 5/8” concrete wedge anchor requires a 5/8” hole to be drilled into the concrete. The hole in the concrete needs to be drilled a minimum of 1/2” deeper than the concrete wedge anchor will penetrate into the concrete.
What size wedge anchors do I need?
As a rule of thumb, the space for the nut and washer is equal to the diameter of the wedge anchor being used. For example, if a 2×4 is being fastened to concrete with a 1/2” wedge anchor then the minimum length of wedge anchor would be 1-1/2”(2×4) + 2-1/4”(minimum embedment) + 1/2”(space for nut and washer) = 4-1/4”.