The Simpson Strong-Tie GDP-125KT delivers reliable, high-performance fastening for gas-actuated concrete nailer applications. These 1-1/4" zinc-finished carbon steel pins are engineered to work seamlessly with the Simpson Strong-Tie GCN-MEPMAG gas-actuated concrete nailer, as well as most major-brand gas-actuated concrete nailer tools. Each kit includes 1,000 pins packaged in the patented 10-fastener break-away plastic strip design, plus one GFC34 Fuel Cell - everything needed to keep your fastening work moving efficiently across a wide range of structural substrates.

Key Features

• Patented 10-Fastener Strip: Break-away plastic strip design allows for smooth, consistent feeding in gas-actuated nailers
• Broad Tool Compatibility: Designed for use with the Simpson Strong-Tie GCN-MEPMAG and most major-brand gas-actuated concrete nailer tools
• Zinc Finish: Provides a durable, corrosion-resistant coating on each carbon steel pin
• Carbon Steel Construction: Delivers the strength and hardness required for penetrating tough substrates including concrete, CMU block, and steel
• Fuel Cell Included: Every box ships with one GFC34 Fuel Cell - no need for a separate purchase to get started
• Versatile Substrate Performance: Rated for use in A36 steel, A572 steel, concrete, CMU block, and sand-lightweight concrete over metal deck
• High-Volume Pack: 1,000 pins per package for extended use on large-scale projects

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: GDP-125KT
• Length: 1-1/4"
• Diameter: .106"
• Head Diameter: .250"
• Material: Carbon Steel
• Finish: Zinc
• Quantity: 1,000
• Country of Origin: China

Approved Applications

The Simpson Strong-Tie GDP-125KT pins are designed and approved for fastening into the following substrates:

• A36 Steel - Standard structural carbon steel
• A572 Steel - High-strength low-alloy structural steel
• Concrete - Standard poured concrete applications
• CMU Block - Concrete masonry unit block construction
• Sand-Lightweight Concrete over Metal Deck - Composite deck and concrete assemblies

What's Included

• 1,000 x Simpson Strong-Tie GDP-125KT 1-1/4" Zinc-Finish Carbon Steel Pins (in patented 10-fastener break-away plastic strips)
• 1 x GFC34 Fuel Cell

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

Frequently Asked Questions

Which nailer tools are compatible with these pins?

These pins are designed for use with the Simpson Strong-Tie GCN-MEPMAG gas-actuated concrete nailer and are also compatible with most major-brand gas-actuated concrete nailer tools, making them a versatile choice for many jobsite setups.

What substrates can these pins be used in?

The GDP-125KT pins are rated for use in A36 steel, A572 steel, concrete, CMU block, and sand-lightweight concrete over metal deck, covering a broad range of structural fastening applications.

Does this kit include a fuel cell, or do I need to purchase one separately?

The kit includes one GFC34 Fuel Cell along with the 1,000 pins, so no separate fuel cell purchase is necessary to get started with your fastening work.

How are the pins packaged, and what is the strip design?

The pins are packaged in a patented break-away plastic strip design with 10 fasteners per strip. This design allows for smooth, consistent feeding in gas-actuated nailers, and the package contains 1,000 pins total for extended use on large-scale projects.