The Simpson Strong-Tie FB24Z Fence Rail Bracket is a steel fence connector made to attach nominal 2x4 rails to posts in wood fencing and similar railing builds. This is a fence rail bracket designed for connecting fence rails to posts. Model Number: FB24Z. If you want a faster, cleaner alternative to toenailing rails in place, this bracket is the whole point.

What makes this style useful is simple: you can preinstall the brackets on the post, then slide the rail into position. On the job, that means less juggling, less layout drift, and less frustration when you are building long fence runs. Simpson Strong-Tie specifically calls out that the design eliminates the need for toe nails or screws driven at awkward angles, which is a real advantage whether you are building a backyard fence or a more finished railing section.

The FB24Z is built from 20-gauge steel and sized around a nominal 2x4 member. The listed bracket dimensions for this model are 1-9/16 inches wide, 3-3/8 inches high, and 3/4 inch for the B dimension. Those numbers matter because they tell you this is a compact connector intended to support common fence rail framing without adding a bulky look at the post.

The finish is a big part of why buyers choose this version. The ZMAX coating is intended for exterior and treated-wood applications where basic indoor hardware is not enough. For fences, deck and porch railings, and other outdoor wood projects, corrosion resistance is not a throwaway spec. It directly affects how the hardware holds up over time once it is exposed to weather and contact with pressure-treated lumber.

Installation is straightforward and clearly defined. Simpson Strong-Tie lists this model for use with 0.131 inch x 1-1/2 inch nails or #9 x 1-1/2 inch Strong-Drive SD Connector screws. For the FB24Z, the bracket installs with (3) fasteners into the rail and (2) fasteners into the supporting member. That kind of detail is worth knowing up front because it tells you the bracket is meant to lock the rail in place with a specific fastening pattern, not just act like a decorative clip.

In real use, this bracket is best for fence builders, deck builders, remodelers, and serious DIY homeowners who want cleaner and more repeatable rail connections. It also makes sense when appearance matters, since the rail sits neatly in the bracket instead of being pinned together with visible angled fasteners. If you are building wood fencing, deck or porch railings, or louvers and you want a connector that speeds up layout while keeping the assembly process simple, this is exactly the kind of hardware you buy on purpose.

Simpson Strong-Tie FB24Z Fence Rail Bracket Keeps Fence Work Simple

This is the kind of small hardware that saves a lot of aggravation once you are actually out building.

• Who it's for: Anybody building wood fences or railings with nominal 2x4 rails who wants cleaner, more repeatable post connections.
• Why it stands out: The bracket lets you skip awkward toenailing, gives you a defined fastener pattern, and adds ZMAX corrosion resistance for outdoor use.
• Worth knowing: This is a connector, not a kit. Make sure you have the specified nails or #9 x 1-1/2 in. Strong-Drive SD Connector screws on hand before you start.

• What size rail is this bracket designed for? The FB24Z is sized for a nominal 2x4 rail.
• Can this bracket be used outdoors? Yes. This version uses a ZMAX coating intended for exterior and treated-wood applications.
• What fasteners does Simpson Strong-Tie specify? Simpson Strong-Tie lists 0.131 in. x 1-1/2 in. nails or #9 x 1-1/2 in. Strong-Drive SD Connector screws.
• How many fasteners are used with the FB24Z? The installation guidance calls for 3 fasteners into the rail and 2 into the supporting member.