Flattened End Connections

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  • This design requires vent holes to be placed as close as possible to the flattened area.
  • More than one hole may be required for larger cross section areas.
  • The total area of the vent holes must equal to the area of a hole with a diameter of at least 25% of the diagonal cross-section of that joint.
  • It is important to include the opposing vent holes on the other end and opposite face in a manner such that zinc will not flow out and solidify onto the steel fabrication.
  • In all cases, the location of the vent holes must conform to the requirements of AS/NZS 5131 and AS 4100.

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