Simpson Strong-Tie Z-MAX 18-Gauge Galvanized 4x Adjustable Post Cap-AC4Z - The Home Depot

Simpson Strong-Tie

Model # AC4Z

Internet # 100375176

Store SKU # 669439

Z-MAX 18-Gauge Galvanized 4x Adjustable Post Cap

Simpson Strong-Tie Z-MAX 18-Gauge Galvanized 4x Adjustable Post Cap

This item has been discontinued.
The Home Depot no longer carries this specific product.

$6.33 / each


Model # AC4Z

Internet # 100375176

Store SKU # 669439

Store SO SKU # 592854

Post Caps connect tops of posts to members for a secure connection and are ideal for new or retrofit applications where structural support is needed. Post caps are available in a variety of one-piece caps for new construction and two-piece options for retrofit of existing connections. The AC series is designed to provide a positive connection between a beam and a post, these connectors are always installed in pairs.

  • Eliminates nailing into end grains
  • Stronger than angled nailing or screw fastening
  • 6-1/2 in. Length
  • For use with 4x lumber
  • Made from 18-Gauge steel
  • Z-MAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
  • Install with 16d common nails or #10 x 1-1/2 in. Strong-Drive SD screws

Info & Guides

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Assembled Depth (in.)  1.5 in  Assembled Height (in.)  6.5 in 
Assembled Width (in.)  5.5 in  Beam Width  4x 
Product Width (in.)  5.5 
Cap Type  Post Cap  Gauge  18 
Material  Steel  Number of Pieces 
Product Weight (lb.)  0.5 lb  Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  Visit our website at and type in warranty in the search box for detailed warranty information 


Rated 5 out of 5 by 2 reviewers.
Rated 5 out of 5 by Updates I think this is an older image, because the 4X4 post cap that I just got at HD has less round openings and more triangles openings. I guess this means that you don't need as many connectors. I hope I never have to use these...they are for seismic retrofit application. September 22, 2014
Rated 5 out of 5 by Worked exactly as expected. Couldn't ask for more or less and performed exactly as expected. May 29, 2014
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