Key Features
316 Stainless Build The Type 316 stainless steel construction gives these brads the corrosion resistance you want when finish work needs to hold up in tougher environments. Clean Finish A T-style head keeps the visible footprint small, which helps when you need fastening strength without drawing attention to the nail in trim and millwork. 18-Gauge Brad Format The Simpson Strong-Tie T18N150FNJ straight-collated 18-gauge brad is built for pneumatic nailers that use this format, making it a practical choice for repeatable finish fastening.
Overview
The Simpson Strong-Tie T18N150FNJ Straight, Adhesive Collation, T-Style Head, 18-Gauge Brads are collated finish brads for trim and finish fastening where you want holding power with a less noticeable nail head. This is a collated brad nail designed for concealed finish fastening with pneumatic tools. Model Number: T18N150FNJ. For this specific version, you are getting Type 316 stainless steel brads in an 18-gauge format, 1-1/2 in. long, packed in a 5,000-count box.
What matters here is the combination of size, material, and head design. At 18 gauge with a 0.049 in. shank diameter, these brads are sized for lighter finish fastening than a heavier finish nail, which helps when you’re working on visible trim details, millwork, paneling, or other jobs where excess splitting and large fastener marks are a problem. The T-style head is there for the same reason: it minimizes the visible footprint of the driven nail for a cleaner finished look.
The straight adhesive collation matters if you run a compatible pneumatic brad nailer and want smooth feeding in a common collated format. That makes the Simpson Strong-Tie T18N150FNJ Straight, Adhesive Collation, T-Style Head, 18-Gauge Brads a better fit for production-style install work than loose fasteners. Load a strip, keep moving, and spend less time handling individual nails.
Material is a big part of why someone buys this exact model instead of a cheaper steel brad. This version uses Type 316 stainless steel, which is the more corrosion-resistant option listed in this product family. If the job is exposed to moisture, humidity, or more demanding conditions than a standard interior space, that upgrade matters. If corrosion resistance is not negotiable, this is the version in the lineup worth looking at.
On the point end, these brads use a nail chisel point. In practical terms, that helps the fastener start cleanly and drive efficiently through finish materials with a pneumatic nailer. Combined with the smooth head pattern and 1-1/2 in. length, this configuration is aimed at users who need a balance of clean appearance and enough length for secure attachment in finish assemblies.
Tool compatibility should be checked against your nailer model, since Simpson Strong-Tie calls out broad compatibility with many pneumatic tools rather than naming every tool directly in the product data. The straight collation format is the key interface detail here. If you already run a pneumatic brad nailer that accepts straight-collated 18-gauge brads in this size range, this is the sort of fastener you are shopping for. If you are unsure, Simpson Strong-Tie recommends verifying fit through its Fastener Finder or tool compatibility matrix.
Who should buy these? Finish carpenters, cabinet installers, millwork crews, remodelers, and serious DIY users doing visible woodwork. If your priority is a clean finish and corrosion resistance from a known fastener brand, this pack makes sense. If you need a heavier fastener for structural holding, this is the wrong category. These are finish brads, and that is exactly where they belong.
Built for Clean Finish Work
These brads are meant for the kind of work people actually see up close. When you’re installing trim, cabinetry, or millwork, the fastener should hold without becoming the thing everyone notices.
- T-style head is designed to minimize the visible footprint after driving
- 18-gauge format suits finish fastening where a smaller fastener mark matters
Corrosion Resistance That Justifies the Upgrade
The reason to buy this specific T18N150FNJ version is the material. Type 316 stainless steel is the premium option in this line, and it is the right call when basic steel fasteners are not enough for the conditions.
- Made from Type 316 stainless steel
- 1-1/2 in. length gives more reach than shorter trim brads in the same family
Made to Feed in Compatible Pneumatic Nailers
Straight adhesive collation is the detail that makes these jobsite-friendly. It gives you the strip format needed for quicker loading and repeat fastening in a compatible pneumatic brad nailer.
- Straight collation for use with many pneumatic tools
- Simpson Strong-Tie recommends confirming tool fit by model number
Key Specifications
| Fastener Type | Collated Brad Nail |
|---|---|
| Gauge | 18 ga. |
| Length | 1-1/2 in. |
| Shank Diameter | 0.049 in. |
| Head Type | T-Style Head |
| Head Pattern | Smooth Head |
| Point Type | Nail Chisel Point |
| Material | Type 316 Stainless Steel |
| Packaging Quantity | 5,000 |
| Collation | Straight, Adhesive |
Compatibility
Tool Type Designed for use with compatible pneumatic tools that accept straight-collated 18-gauge brads. Fit Verification Simpson Strong-Tie directs users to verify nailer compatibility by tool model number using its Fastener Finder or compatibility matrix.
Built For
Finish Carpentry Cabinet Installation Millwork Trim Installation Remodeling Woodworking
Pro Tip
If you’re switching between brands of pneumatic brad nailers, do not assume every straight 18-gauge strip feeds the same. Check your tool model before ordering a full 5,000-count box of T18N150FNJ fasteners.
Tool Nut’s Take
Tool Nut’s Take
Simpson Strong-Tie T18N150FNJ 18-Gauge Brads for Finish Work That Needs Better Corrosion Resistance
This is the brad you buy when a standard finish nail is not enough and you do not want to come back later because the fasteners were the weak link.
- Who it’s for: Finish carpenters, cabinet installers, and remodelers who need a 1-1/2 in. stainless brad for clean-looking fastening in a compatible pneumatic nailer.
- Why it stands out: Type 316 stainless steel, a small T-style head, and a straight-collated 18-gauge format make it a smart pick for visible finish work.
- Worth knowing: This is a fastener-only purchase, and tool fit should be confirmed by nailer model before you stock up on the 5,000-count box.
Common Questions
- What material is the T18N150FNJ made from? This specific model is made from Type 316 stainless steel.
- How long are these brads? Each brad is 1-1/2 inches long.
- What gauge are these nails? They are 18-gauge collated brads.
- Will these fit any 18-gauge brad nailer? Not automatically. Simpson Strong-Tie says compatibility should be confirmed by your pneumatic tool model number.
- How many brads come in the box? The T18N150FNJ package quantity is 5,000 brads.
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