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Simpson BC4Z Post Cap - ZMAX

Simpson BC4Z Post Cap - ZMAX

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Notice - This connector is designed for Rough Cut lumber NOT nominal lumber (most common).

The Simpson Strong-Tie BC series offers dual purpose post cap/base for light cap or base connections. The BC46R post base is approved to be installed with the specified nails or Strong-Drive SD connector screws. The Strong-Tie BC46R post base features a G90 galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications of ASTM A153.

  • Use all specified fasteners.
  • Do not install bolts into pilot holes
  • BC: install with 16d commons or 16d x 2-1/2" joist hanger nails.
  • Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non top-supported installations (such as fences or unbraced carports).
  • To tie multiple 2x members together, the Designer must determine the fasteners required to join members to act as one unit without splitting the wood.

NOTE: The correct fasteners installed in the correct position must be used to achieve published load values

Looking for something different? See the rest of our Simpson BC & BCS Post Caps.

California Residents: WARNING


Material: Galvanized Steel
Post Size: 4X
Height: 3"
Fasteners required: Beam Flange - (6) 0.162 x 3-1/2" nails; Post Flange - (6) 0.162 x 3-1/2" nails
Thickness: 18 Gauge
Quantity: 1
Width: 3-9/16"
Finish: ZMAX
Length: 2-7/8"
Manufacturer name: Simpson Strong-Tie
Product Guide: View Spec Sheet


•Opposing flanges provide increased lateral resistance
•Attains full allowable load using either common nail or pneumatic nail sizes
•Light-gauge material designed for light-duty applications


•Use all specified fasteners; see General Notes
•Do not install bolts into pilot holes
•Install with 0.162″ x 3 1/2″ nails or 0.162″ x 2 1/2″ nails

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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit:

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