An isometric studio graphic of a single collated strip containing ten Bosch NK-138 1-3/8 inch concrete pins, showcasing the blue plastic collation band holding the full round nail heads and the knurled steel shank structure against a clean white background.
A direct front view product layout of a ten-shot collated strip of Bosch concrete nails, demonstrating the uniform alignment of the knurled steel fasteners held securely in the blue plastic structural matrix.
An extreme macro close-up photograph looking directly down onto the round silver head of a Bosch concrete track nail, showcasing the high-definition stamped Bosch hallmark logo text on the metallic surface.
A real-world commercial framing application shot showing a construction worker wearing a white leather glove inserting a blue collated strip of concrete nails into the magazine feeder mechanism of a cordless blue Bosch Biturbo brushless concrete nailer tool.
A jobsite lifestyle photograph showing a blue Bosch GNB18V-12 18V concrete nailer resting on a concrete ledger next to a detached strip of collated track pins and a pair of yellow leather work gloves near an industrial window frame.
An isometric studio graphic of a single collated strip containing ten Bosch NK-138 1-3/8 inch concrete pins, showcasing the blue plastic collation band holding the full round nail heads and the knurled steel shank structure against a clean white background.
A direct front view product layout of a ten-shot collated strip of Bosch concrete nails, demonstrating the uniform alignment of the knurled steel fasteners held securely in the blue plastic structural matrix.
An extreme macro close-up photograph looking directly down onto the round silver head of a Bosch concrete track nail, showcasing the high-definition stamped Bosch hallmark logo text on the metallic surface.
A real-world commercial framing application shot showing a construction worker wearing a white leather glove inserting a blue collated strip of concrete nails into the magazine feeder mechanism of a cordless blue Bosch Biturbo brushless concrete nailer tool.
A jobsite lifestyle photograph showing a blue Bosch GNB18V-12 18V concrete nailer resting on a concrete ledger next to a detached strip of collated track pins and a pair of yellow leather work gloves near an industrial window frame.
BOSCH

Bosch Fasteners NK-138 1-3/8 Inch Collated Wood Concrete Nails (Knurled Shank Hardened Steel ICC Certified GNB18V-12 Track Pins Strip)

In stock
SKU: NK-138
$99.59 USD

Description

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Bosch NK-138 1-3/8 Inch Collated Wood to Concrete Knurled Steel Nails

The Bosch NK-138 1-3/8-Inch Collated Wood-to-Concrete Nails function as hardened structural track pins engineered to anchor wood sill plates, furring strips, and framing studs directly into cured concrete slabs and masonry walls. Featuring a knurled shank profile, a full round head design, a 1.375-inch overall length, and ICC-certified engineering compliance, these steel fasteners connect to the Bosch GNB18V-12 18V Cordless Concrete Nailer. Manufactured from hardened tool-grade steel to resist bending under impact, these collated strip nails feed through standard 22-shot and 44-shot magazines to accelerate commercial framing and drywall track installations.

Best Used For:

  • Wood Sill Plate & Stud Attachment: Anchoring 2x4 wood bottom plates, furring strips, and timber studs onto poured concrete floor slabs and basement foundations.
  • Drywall Track & Partition Framing: Securing metal track and wooden backing plates to concrete ceilings, masonry walls, and structural columns.
  • Commercial Interior Construction: Executing high-volume track pin installations across basement finishing and commercial partition wall layouts.

Key Performance & Safety Features

  • Advanced Knurled Shank Geometry: Grooved steel shank design maximizes friction resistance to create a mechanical lock in cured concrete.
  • Official ICC Tested & Certified: Lab-tested alongside the Bosch GNB18V-12 nailer to satisfy International Code Council building compliance specifications.
  • Hardened Structural Steel Composition: High-tensile steel matrix resists bending, shearing, or shattering under battery-powered direct impact.
  • Dedicated GNB18V-12 System Fitment: Collated strip feeds smoothly into standard and high-capacity magazines without jams or misfires.
  • Full Round Head Coverage: Full-head profile distributes driving force evenly across timber surfaces to prevent over-driving or wood splitting.
  • Clean-Break Collation Strip: Plastic collation strip maintains pin alignment during transit and detaches cleanly inside the tool firing channel.

What's Included

  • (1) Box of Bosch NK-138 1-3/8" Collated Wood-To-Concrete Nails

Technical Specifications

Brand Manufacturer Bosch Power Tools
Model Identification OEM SKU NK-138
Fastener Classification Collated Wood-To-Concrete Framing Nails / Track Pins
Overall Fastener Length 1.375 in. (1-3/8 in. / 34.925 mm)
Shank Profile Style Knurled Structural High-Retention Grip
Nail Head Configuration Full Round Head
Material Composition Hardened Premium Structural Steel
Host Tool Compatibility Exclusively for Bosch GNB18V-12 Cordless Concrete Nailer
Building Code Compliance ICC (International Code Council) Tested and Certified
Safety Standard Listing ANSI Safety Listed
Individual Fastener Net Weight 0.09 lbs. (1.44 oz. / 40.8 g)
Total Package Shipping Weight 3.792 lbs. (1.72 kg)
Country of Origin Taiwan
Manufacturer Warranty Coverage Lifetime Protection Against Manufacturer Defects

Pro-Tip: When driving NK-138 pins through 2x4 wood plates into cured concrete using the GNB18V-12 nailer, press the tool nose contact element firmly perpendicular against the wood surface. Holding a straight 90-degree angle ensures the knurled shank penetrates cleanly to maximize tension holding power in high-PSI concrete.