BOSCH nails for GNB 18V-38 and GNB 18V-40 Professional are divided into two main types: NB nails for concrete and NM nails for steel. NB nails are made of galvanized carbon steel with a 2.7 mm shank and lengths up to 1640 mm, suitable for construction work such as fastening on concrete, brick, or other hard materials.NM nails have a 3.0 mm shank with shorter lengths up to 1319 mm, ideal for fastening on steel and metal structures. They provide high strength and prevent bending or breaking.Both types are specially designed to deliver full performance with BOSCH Professional cordless nailers, ensuring speed, safety, and high-quality results.
Features of BOSCH Concrete Nails and Steel Nails for GNB 18V-38 and GNB 18V-40 Professional
- NB Nails (Concrete Nails)
- Suitable for fastening into concrete, brick, or other hard wall/floor construction materials
- Made of special hardened carbon steel with galvanized coating for rust protection
- Available in various lengths: 16, 19, 25, 32, 38, 40 mm
- Shank diameter approx. 2.7 mm
- NM Nails (Steel Nails)
- Suitable for fastening into steel or metal structures
- Stronger than NB nails with a slightly larger shank
- Shorter in length compared to NB nails: 13, 16, 19 mm
- Shank diameter approx. 3.0 mm
Precautions / Tips
- Choose the right length: For tough and dense concrete, use longer nails (e.g. NB-32 or NB-38) to ensure firm fastening without loosening or bending
- Select the right shank size and material: 2.7 mm shank is ideal for concrete, while steel may require a thicker shank (3.0 mm)
- Surface treatment / material: Galvanized coating improves rust resistance and durability
- Check certifications: GNB 18V-38/40 nails are tested and certified to standards such as ETA / ICC for lengths 25, 32, 38 mm
