Drywall screw 3.5x55mm TN 55 KNAUF

The TN series drywall screw from the world leader KNAUF is a premium fastener designed for building durable and long-lasting drywall systems. The TN indexing determines the presence of a specific trumpet head and a sharp needle-shaped tip, combined with a fine thread for metal. This geometry is precisely optimized for fast and trouble-free drilling of metal profiles and substructures, without the need for pre-drilling. With its impressive length of 55 mm, this model is ideal for fastening thick or multi-layer plasterboard sheathing, where passage through several layers of boards and deep anchoring in the supporting profile is required.

The trumpet head is designed to sink smoothly into the surface of the plasterboard without tearing the front protective paper layer, providing a perfect base for subsequent grouting and plastering. Made of high-quality steel with a black oxidized coating according to DIN 52020 standard, the screw has excellent protection against corrosion and the influence of construction moisture on the site. Working with it is made as easy as possible thanks to the universal slot type PH 2, which prevents the tool from slipping and ensures fast, clean and effective fixing with a drilling time of less than two seconds.

Purpose:

• Installation of multi-layer sheathing and thick plasterboard panels to metal profiles
• Construction of partition walls, pre-wall cladding and suspended ceilings with increased strength requirements
• Fastening drywall panels to thin sheet metal bases and profiles with fine thread pitch
• Use in interior repairs requiring deep mechanical anchoring

Main advantages:

• Black oxidized coating, ensuring high resistance to corrosion and the influence of mortars
• Trumpet head that sinks precisely below the surface of the cardboard without disturbing its integrity
• Extended length of 55 mm, ideal for fixing complex multi-layer structures
• Standardized manufacturing according to DIN 52020 for consistent quality and mechanical strength
• Professional PH-type slot for a stable grip of the bit during screwing

Technical characteristics:

• Screw type: TN (pointed tip, trumpet head)
• Diameter: 3.5 mm
• Length: 55 mm
• Thread pitch: Fine (for metal)
• Material: Steel
• Coating: Oxidation (black)
• Slot type: PH (Size PH 2)
• Standard: DIN 52020
• Package weight: 2.62 kg
• Quantity in package: 1000 pieces