Area of use Trallskruv Invisible is installed using the Decking Tool+ and is used when a hidden installation is desired. The screw has a thread under the screw head to press the board down against the substrate. Acid-resistant stainless steel A4 for the toughest environments such as the west coast and around swimming pools. Can be used with precious wood, such as cedar and larch. The reduced drill tip minimizes the risk of cracks. Description Trall screw, cylindrical head. Made of stainless acid-proof steel. Slot type: Torx • Reduced drill tip • Corrosivity class C5
Manufacturer: Heco | Nozzle size: TX15 / T15 | Fastener diameter, mm: 4,2 | Fastener length, mm: 60 | Fastener type: Wood screw | Purpose of the fastener: Wood products | Fasteners metal type: A4 stainless steel | Screwdriver head type: TORX