Simpson 3/4 in. Step-Shank Drive Pins from Simpson are professional-grade carbon steel fasteners engineered for direct fastening into structural steel using gas-actuated nailers. The step-shank geometry combines a narrower tip with a wider upper shank to make each shot cleaner and more secure, giving contractors a reliable solution for steel attachment work where speed and holding strength both matter. Each kit ships with 1,000 pins and one fuel cell, so crews can get straight to work without a separate supply run.

Key Features

• Compatible with Simpson Strong-Tie G3 and GCN-MEPMAGKT gas-actuated concrete nailers, as well as most major brands - works with the tools already on your jobsite, reducing the need to stock multiple pin types.
• Rated for fastening into A36 and A572 steel - covers the two most common structural steel grades used in commercial and industrial construction, so the pin is appropriate for a wide range of steel attachment applications.
• Patented 10-fastener strip with break-away plastic - keeps pins organized and feeds them consistently into the nailer, reducing jams and downtime between shots.
• Smaller-diameter tip - facilitates easier penetration into the base material, meaning less drive force required and more consistent results shot to shot.
• Larger-diameter upper shank - provides more shear resistance and successful installation, giving the fastened connection greater strength once the pin is set.
• Zinc-plated carbon steel construction - the coating adds a layer of corrosion resistance over the carbon steel core, helping the pins hold up in demanding site conditions.
• Includes 1 fuel cell with each 1,000-pin kit - the kit arrives ready to use, pairing consumables together so nothing is missing when the nailer is loaded up.

Why This Product

• Engineered step-shank design does two jobs at once - the narrower tip drives in with less resistance while the wider upper shank locks in with higher shear strength, a combination that makes installation both easier and more structurally sound compared to a uniform-diameter pin.
• Broad nailer compatibility keeps crews moving - these pins are designed for Simpson Strong-Tie gas-actuated nailers but also work with most major-brand tools, making them a practical single-SKU choice for mixed-fleet jobsites.
• Strip-loaded packaging reduces handling and reload time - the patented 10-fastener break-away plastic strip feeds directly into the nailer, minimizing the fumbling and delays that come with loose fasteners during high-volume steel fastening work.
• Complete kit format means no missing consumables - with 1,000 pins and a fuel cell included together, the kit is self-contained and ready to run, eliminating the frustration of arriving on site with pins but no power source for the nailer.

Specifications

• MPN: GDPS-75KT
• Brand: Simpson Strong-Tie
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Length: 3/4 in.
• Head Diameter: 0.240 in.
• Shank Diameter: .118/.102 in.

Approved Applications

• Fastening into A36 structural steel
• Fastening into A572 high-strength low-alloy structural steel
• Use with Simpson Strong-Tie G3 gas-actuated concrete nailer
• Use with Simpson Strong-Tie GCN-MEPMAGKT gas-actuated concrete nailer
• Compatible with most major-brand gas-actuated nailers

What's Included

Each kit contains (1000) GDPS-75KT Step-Shank Pins, 1 fuel cell.

Frequently Asked Questions

What nailers are these pins compatible with?

These pins are designed for use with the Simpson Strong-Tie G3 and GCN-MEPMAGKT gas-actuated concrete nailers, and are also compatible with most major-brand gas-actuated nailers.

What is the purpose of the step-shank design on these pins?

The step-shank design features a smaller-diameter tip to facilitate easier penetration into the base material, while the larger-diameter upper shank provides more shear resistance and successful installation overall.

What types of steel can these pins be fastened into?

These drive pins are designed to fasten into A36 and A572 steel, both of which are widely used structural steel grades in construction and industrial applications.

How are the pins packaged for use in the nailer?

The pins are loaded in a patented 10-fastener strip designed with break-away plastic, allowing for efficient and reliable feeding in compatible gas-actuated nailers.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.