Powers Fasteners Wedge Bolt
Large Diameter Tapcon
Types of Wedge-Bolt - The wedge bolt is manufactured from carbon steel and then it is zinc plated for rust resistance. The standard zinc plated wedge bolt’s end is a blue color to designate that a matched tolerance wedge bit is required.
Diameters - The wedge bolt is available in five diameters of 1/4”, 3/8”, 1/2”, 5/8” and 3/4”. The diameter of wedge bolt to choose for any particular application depends on the holding values required. A rule of thumb is that the larger the diameter of wedge bolt then the larger the weight that the wedge bolt can hold.
Lengths - Each diameter of wedge anchor comes in a number of different lengths for use in applications where a deeper embedment is required or the fixture thickness is wider.
Hole Diameter - The hole for the wedge bolt must be drilled using the correct wedge bit that is sold only through Powers Fasteners. It is a special diameter bit that meets the hole tolerance required for the wedge bolt. The designated size is not equal to the designated ANSI standard bit of the same size. The ANSI standard bit of the same designated size should not be used to drill a hole for the wedge bolt.
|Wedge Bolt Diameter||Wedge-Bit||Size||ANSI Drill Bit Range||Fixture Hole Clearance|
|3/8”||3/8”||.385” - .389”||7/16”||9/16”|
|1/2”||1/2”||.490” - .495”||9/16”||3/4”|
|5/8”||5/8”||.600” - .605”||11/16”||15/16”|
|3/4”||3/4”||.720” - .725”||13/16”||1-1/8”|
Hole Depth - The depth of the hole to be drilled in the base material must be a minimum of one anchor diameter deeper than the depth the wedge bolt penetrates the base material. This provides space for the dust as it forms during the installation process and prevents it from interfering with the installation process.
Minimum Embedment - Each diameter of wedge bolt requires a different minimum embedment of the wedge bolt into the base material:
|Wedge Bolt Diameter||Minimum Embedment|
Determining Anchor Length - Adding the thickness of the material being fastened plus the minimum embedment of the diameter of wedge bolt being used can determine the minimum length of wedge bolt for any application.
Torque Values - The wedge bolt should not be over-torqued once installed in the base material because this could cause stripping of the threads and spinning of the wedge bolt in the hole. The maximum torque values for each diameter of wedge bolt is based on the psi of the base material that the wedge bolt is installed in:
|Wedge Bolt Diameter||2000 PSI Concrete||4000 PSI Concrete||6000 PSI Concrete|
- Using the proper diameter wedge bit for the wedge bolt being installed, drill a hole in the base material using a hammer drill in the hammer mode
- Drill the hole to a depth of a minimum of one anchor diameter deeper than the wedge bolt will penetrate. It is important that the embedment depth of the wedge bolt is at least the minimum embedment depth for the diameter of wedge bolt being installed.
- Insert the wedge bolt through the hole in the fixture and into the hole in the base material. Rotate the wedge bolt clockwise and apply pressure to engage the threads in the base material.
- The installation is completed once the head of the wedge bolt is seated securely against the fixture.
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