Norhage Industri Structural Wood Screws

Norhage Industri structural wood screws, measuring 4.5 × 40 mm, are designed for timber structures requiring high strength and excellent corrosion resistance. Made from Grade 8.8 carbon steel and protected with a C4 corrosion-resistant coating, they withstand a 1,500-hour salt spray test, making them suitable even for harsh climatic conditions.

The TORX OD drive provides higher torque transmission, reducing bit slippage and wear while allowing faster installation. The deep wood thread ensures a secure hold, while the countersunk head sits flush with the surface. In most timber applications, pre-drilling is not required.

Suitable for timber structures, garden sheds, outdoor constructions and load-bearing timber connections. Can be driven into solid wood, chipboard, MDF and OSB.

Key Benefits

• Grade 8.8 carbon steel – high tensile strength
• C4 coating – tested for 1,500 hours in a salt spray test
• TORX OD drive – higher torque transmission and reduced bit slippage
• Deep wood thread – secure fastening
• Countersunk head – sits flush with the surface
• Pre-drilling generally not required in most timber applications

Technical Specifications

• Dimensions: 4.5 × 40 mm
• Material: Grade 8.8 carbon steel
• Coating: C4 corrosion-resistant coating
• Corrosion resistance: 1,500-hour salt spray test
• Drive type: TORX OD
• Head type: Countersunk
• Thread type: Deep wood thread
• Suitable for: Solid wood, chipboard, MDF and OSB
• Packaging: 50 pcs