The Milwaukee MPU112-960 1.5 Inch 9 Gauge Galvanized Staples are collated fencing staples built for heavy-duty wire attachment in outdoor wood applications. This is a collated staple designed for attaching wire fencing to wood fence posts and securing copper grounding wire to utility poles. Model Number: MPU112-960. If you are loading a utility fencing stapler for farm fencing, ranch work, or grounding wire installation, this is the consumable that does the actual holding.

What matters here is not just staple length or gauge, but how the staple is built to stay put once it is driven. Milwaukee uses barbed staple legs, divergent legs, and an adhesive coating to increase holding power in the material. In plain terms, that means the staple is designed to resist backing out and to grip better in wood posts where vibration, weather, and wire tension can work a fastener loose over time.

The diamond crown design is another feature that matters on the job. It allows the staple to work with larger wire sizes and small plastic moldings, which gives this fencing staple more flexibility than a basic straight-crown option. If you are securing heavier wire or working around components that need a little more clearance and shape at the crown, that design helps the staple seat properly without fighting the material.

For outdoor use, the finish is a big part of the value. These staples are zinc-aluminum coated and hot dipped galvanized for corrosion resistance, and Milwaukee states that the corrosion resistance exceeds Class 3 hot dipped galvanized staples. On fencing and utility jobs, that matters because the fastener is exposed to weather, moisture, and temperature swings. A staple that rusts early turns into a callback.

These staples are also built as a collated strip with durable tape collation, which is important for smooth feeding through the tool. That is not a flashy feature, but anyone who has dealt with poor collation knows it can slow down loading and create interruptions in the field. Good collation helps keep the stapler running consistently, especially when you are moving down a fence line and want to stay in a rhythm.

Compatibility is straightforward and important: these staples are only compatible with the Milwaukee M18 FUEL Utility Fencing Stapler, models 2843-20 and 2843-22. That makes this a purpose-built accessory, not a universal staple. If you already own that Milwaukee fencing stapler, this is the correct 1.5 inch 9 gauge galvanized staple option in a 960-count pack.

Who should buy these? Contractors, utility crews, farm and ranch users, and property owners doing serious fencing work. They make the most sense for people who need repeatable fastening speed with the M18 FUEL Utility Fencing Stapler and want a corrosion-resistant staple designed specifically for wire fencing and grounding applications. If you are trying to secure fence wire to wood posts with a dedicated fencing stapler, this is the right kind of fastener. If you need a general-purpose office or trim staple, this is absolutely not that product.

The Right Staple for the Milwaukee Fencing Stapler

The Milwaukee MPU112-960 1.5 Inch 9 Gauge Galvanized Staples are the kind of accessory that makes sense the second you start doing real fence line work with the M18 FUEL stapler.

• Who it's for: Fence installers, utility crews, farm and ranch users, and anyone fastening wire to wood posts with the Milwaukee 2843 stapler.
• Why it stands out: The combination of hot dipped galvanized corrosion resistance, barbed divergent legs, and the diamond crown design gives this staple more jobsite value than a plain heavy staple.
• Worth knowing: This is a dedicated fastening accessory, so tool compatibility matters. If you do not have the Milwaukee M18 FUEL Utility Fencing Stapler, this is not the staple to buy.

• What tool do these staples fit? They are only compatible with the Milwaukee M18 FUEL Utility Fencing Stapler models 2843-20 and 2843-22.
• What are these staples designed to fasten? They are intended for attaching wire fencing to wood fence posts and for securing copper grounding wire to utility poles.
• Are these staples made for outdoor use? They are zinc-aluminum coated hot dipped galvanized for corrosion resistance, which makes them suitable for exposed fencing and utility applications.
• How many staples come in a pack? Pack quantity is 960 staples.