Simpson 5/8" Step Shank Pins are precision-engineered fasteners designed for use with the Simpson Strong-Tie GCN-MEPMAG gas-actuated nailer, delivering reliable pin fastening performance in steel applications. Built around a dual-diameter step-shank geometry, these zinc-finished carbon steel pins combine easier drive-in penetration with strong shear resistance once seated - making them a dependable choice for high-volume steel fastening work on demanding jobsites.

Key Features

• Step-Shank Dual-Diameter Design - A smaller-diameter tip transitions to a larger-diameter upper shank, allowing the pin to drive in with less resistance while locking in with greater shear strength once installed, giving you a more secure and consistent connection in steel.
• Engineered for the GCN-MEPMAG Gas-Actuated Nailer - Designed specifically to work with the Simpson Strong-Tie GCN-MEPMAG, so you get reliable compatibility and repeatable performance shot after shot without guesswork or fitment issues.
• Zinc-Finished Carbon Steel Construction - The zinc finish over carbon steel provides a durable, corrosion-resistant surface that holds up in typical jobsite conditions while maintaining the mechanical integrity needed for steel substrate fastening.
• Optimized for Steel Substrate Fastening - These pins are purpose-built for fastening into steel, making them well-suited for MEP (mechanical, electrical, and plumbing) applications and structural connections where consistent shear resistance is a priority.

Why This Product

• Designed-in Compatibility - Because these pins are engineered specifically for the Simpson Strong-Tie GCN-MEPMAG gas-actuated nailer, you can trust that every drive cycle performs as intended - no adapting, no compromising, no wasted shots.
• Dual-Function Geometry Means Better Results - The step-shank configuration handles two jobs at once: the narrower tip eases entry into steel, while the wider upper shank delivers the shear resistance needed to hold the connection securely under load.
• Purpose-Built for High-Volume Steel Fastening - When consistent pin fastening into steel is the requirement - whether for MEP installations or other steel substrate applications - these pins are built to perform repetitively without sacrificing reliability.
• Trusted Simpson Strong-Tie Engineering - Backed by the Simpson brand and engineered to precise dimensional tolerances, these pins reflect the same standards applied across the broader line of Simpson fastening products, giving contractors and installers added confidence in the field.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: GDPS-62KT
• Length: 5/8"
• Upper Shank Diameter: .118"
• Tip Diameter: .102"
• Head Diameter: .250"
• Material: Carbon Steel
• Finish: Zinc
• Quantity: 1,000 per pack
• Compatible Tool: Simpson Strong-Tie GCN-MEPMAG Gas-Actuated Nailer

Approved Applications

• Fastening into steel using the GCN-MEPMAG gas-actuated nailer
• High-volume pin fastening where consistent shear resistance is required
• Applications demanding reliable step-shank penetration performance in steel substrates

What's Included

• 1,000 x Simpson Strong-Tie GDPS-62KT 5/8" Step Shank Pins (Zinc-Finished Carbon Steel)

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

Frequently Asked Questions

What tool are the GDPS-62KT pins compatible with?

These pins are engineered specifically for use with the Simpson Strong-Tie GCN-MEPMAG gas-actuated nailer, ensuring reliable compatibility and consistent performance during installation.

What is the step-shank design and why does it matter?

The step-shank design features a dual-diameter construction: a smaller-diameter tip (.102") for easier penetration into steel, and a larger-diameter upper shank (.118") that maximizes shear resistance once the pin is seated. This combination helps ensure a secure, successful installation every time.

What are the key dimensions and material specifications of these pins?

Each pin is 5/8" in length with a .102" tip diameter, a .118" upper shank diameter, and a .250" head diameter. They are made from carbon steel with a zinc finish for added durability.

How many pins are included in one pack?

Each pack of the GDPS-62KT contains 1,000 pins, making it well-suited for high-volume fastening applications on demanding jobsites.