Features
- Knurled shank for improved holding in concrete
- Supplied in collated strips for magazine-fed installation
- Designed for use with a cordless 18V concrete nailer (GNB18V-12)
- Tested and certified (ICC) with the compatible nailer
- Compatible with 22-shot collated magazine; extra-capacity (44-pin) magazine available separately
Specifications
| Model Number | NK-138 | 
| Length | 1.375 in (1-3/8 in) | 
| Pack Quantity | 1000 | 
| Order Number | 1600A02FZ9 | 
| Compatibility | GNB18V-12 cordless 18V Concrete Nailer | 
| Certification | ICC tested and certified | 
| Collation | 22-shot collated strips (extra-capacity 44-pin magazine sold separately) | 
Collated wood-to-concrete nails intended to fasten wood to concrete. They have a knurled shank for improved holding and are supplied in collated strips for use with magazine-fed concrete nailers. These fasteners were tested and certified together with the referenced cordless concrete nailer (ICC).
Project Ideas
Business
Rapid Furring & Drywall Prep Service
Offer a specialized service to furr out concrete perimeter walls in basements and garages. Using the 22-shot or 44-pin magazine, you can install PT furring quickly, ready for insulation and drywall—priced per linear foot with add-ons for moisture barriers.
Pop-Up Retail/Exhibit Buildouts
Provide fast, clean installations of non-structural fixtures, backdrops, and low partitions anchored to concrete floors/walls in malls, event halls, and warehouses. Collated nails minimize setup time and labor, ideal for quick turnarounds.
Acoustic Retrofits for Gyms & Schools
Market to facilities needing noise control. Nail wood battens to concrete walls/ceilings, then mount acoustic panels or slat systems. Sell as a turnkey package with measurable reverberation reduction and rapid install windows.
Garage & Shop Fit-Out Packages
Bundle wall-mounted workstations, cleat walls, and anchored cabinets for homes and small businesses with concrete walls. Offer tiered packages (Basic/Pro/Elite), leveraging the cordless nailer for fast, dust-light installs.
Tool-Assisted Install + Rental Combo
Operate a micro-service renting the compatible cordless concrete nailer with on-call installation for small tasks (cleats, stops, trim blocks). Charge a day rate for the tool plus per-fastener pricing, and upsell nails in bulk packs.
Creative
Basement Slat Accent Wall
Create a modern slat wall on a poured-concrete foundation by first nailing pressure-treated furring strips to the concrete, then attaching vertical hardwood slats. The collated strips and 44-pin magazine speed up repetitive fastening, while the knurled shank keeps furring locked in.
Garage French-Cleat Storage
Build a full-wall French-cleat system over concrete. Nail horizontal PT furring into the wall, then mount plywood cleats and modular storage. Perfect for customizing tool holders and shelves without drilling hundreds of holes.
Patio Bench & Planter Base
Anchor cedar bench bases and matching planters to a concrete patio to resist movement and wind. Use the ICC-tested nails for reliable hold, then skin the frames with weather-resistant boards for a clean, built-in look.
Indoor Bouldering/Climbing Panels
Mount plywood panels over furring strips on a concrete wall to create a home bouldering section. The collated nail system makes installing dozens of attachment points fast; then add t-nut panels and holds. For non-structural panel mounting.
Acoustic Wood Grid on Concrete
Install a shallow wood grid or diffuser array in a studio or media room. Nail backing battens to concrete, then fasten patterned wood pieces to tame echoes while adding architectural interest.