Simpson Strong-Tie 2-in. x 3-7/8-in. x 2-1/2-in. ZMAX Galvanized Angle (A24Z)
Simpson Strong-Tie 2-in. x 3-7/8-in. x 2-1/2-in. ZMAX Galvanized Angle (A24Z)
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Product Details
Product Details
Key Features
Overview
The Simpson Strong-Tie A24Z Angle is a heavy-duty framing angle for reinforcing 90-degree wood connections in structural and repair work. This is an angle designed for wood-to-wood 90-degree connections. Model Number: A24Z. If you are tying framing members together, strengthening a corner, or backing up a connection that needs to stay square, this bracket gives you a simple mechanical connection with a thicker steel body and a corrosion-resistant finish.
In the Simpson A angle family, the A24Z sits in the heavier 12 gauge group, not the lighter 18 gauge sizes. That matters because it is built for tougher connection points where a lighter bracket may not be the right call. The dimensions are 3-7/8 inches by 2 inches with a 2-1/2 inch leg length, which gives it more contact area than the smaller A21 and A23 angles. More contact area means better support across the joint and more room for proper fastening.
The ZMAX coating is one of the main reasons to choose this specific model over the plain galvanized A24. Simpson uses the Z at the end of the model number to identify the upgraded corrosion-resistant finish. For outdoor framing, damp environments, or treated lumber, that is the version most buyers should be looking at. If the connection will see weather or contact with preservative-treated wood, the finish matters just as much as the bracket size.
This bracket is made from steel, with supplementary product data identifying the base material as carbon steel. In practical terms, that means rigid support for corner reinforcement, framing repairs, and utility connections where you want the joint pulled together and held in line. Angles like this are commonly used because they are stronger and more consistent than relying on toenailing or screws alone. They also help keep corners straight during assembly.
Installation is straightforward, but it only works as intended when you use the specified fasteners and install them correctly. Simpson's installation guidance is simple and important: use all specified fasteners. Lowe's product data for this item lists installation with 10d common nails and 1/2-inch diameter bolts. The bigger point is this: connector performance depends on the right hardware in the right holes. If you leave holes empty or substitute whatever fastener is lying around, you are not getting the connection this bracket was designed to provide.
The Simpson Strong-Tie A24Z Angle makes the most sense for framers, remodelers, deck builders, general contractors, and serious DIY users who need a reliable wood connector without overcomplicating the job. It is especially useful when you need a square corner, extra reinforcement at a joint, or a cleaner, stronger connection in treated wood or exterior conditions. If your job calls for a compact but substantial framing angle, this is the version in the A series that gives you heavier steel and the better finish.
Reinforce Corners Without Guesswork
This style of framing angle is all about making a 90-degree connection stronger and more repeatable. Instead of depending on angled fasteners alone, you get a steel bracket that holds the members in position and backs up the joint.
- Designed for wood-to-wood fastening at 90 degrees
- Useful for framing, structural support, and repair work
Choose the Heavier A24Z Size
Not every angle in this family is built the same. The A24Z uses 12 gauge steel, which puts it in the heavier-duty group and makes it a better choice when you want more connector behind the joint.
- 12 gauge steel construction
- 3-7/8 in. x 2 in. x 2-1/2 in. size offers more bearing area than the smaller A21 and A23 models
Simpson Strong-Tie A24Z Angle for Treated Lumber
Simpson Strong-Tie A24Z Angle for Treated Lumber
The ZMAX finish is the practical upgrade here. If the angle is going into treated lumber or an exterior location, the extra corrosion resistance is the reason to buy the A24Z instead of the standard galvanized version.
- ZMAX finish is intended for exterior and treated-wood applications
- Model suffix Z identifies the upgraded corrosion-resistant coating
What's in the Box
- (1) Simpson Strong-Tie A24Z ZMAX Galvanized Angle
Key Specifications
| Application | Wood-to-Wood |
|---|---|
| Angle | 90° |
| Material | Carbon Steel |
| Finish | ZMAX® |
| Gauge | 12 ga. |
| Width 1 | 3-7/8 in. |
| Width 2 | 2 in. |
| Length | 2-1/2 in. |
Compatibility
Built For
Pro Tip
If you are choosing the A24Z for treated lumber or outdoor work, do not cheap out on the fasteners. Use the specified hardware and fill the required holes, because the connector only performs to published values when the full fastening pattern is followed.
Tool Nut's Take
A Small Connector That Solves a Real Framing Problem
The Simpson Strong-Tie A24Z Angle is the kind of bracket you buy when you want a wood connection to stay square, stay supported, and hold up better in treated or exterior conditions.
- Who it's for: Framers, deck builders, remodelers, and serious DIY users reinforcing 90-degree wood joints.
- Why it stands out: You get the heavier 12 gauge body plus the ZMAX finish, which is the right combo for tougher wood connections.
- Worth knowing: This is sold as a single angle, and like most structural connectors, it only makes sense if you install it with the correct specified fasteners.
Common Questions
- What is the Simpson Strong-Tie A24Z Angle used for? It is used for 90-degree wood-to-wood connections in framing, structural support, and repair applications.
- Is the A24Z suitable for treated lumber? Yes. Provided product data lists it as suitable for treated lumber, and the ZMAX finish is intended for added corrosion resistance.
- What is it made from? Supplementary product data lists carbon steel construction with a 12 gauge thickness.
- Do fasteners matter with this angle? Yes. Simpson's installation note says to use all specified fasteners, and published performance depends on correct fastener type and placement.

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