Wood screw 4.5x40mm, TH25 wide periphery, yellow Zn KAMFIX

KAMFIX professional wood screws with a wide periphery and TX25 slot are a highly effective and solid fastening solution, designed specifically for the construction of joints with significant load levels. The key design feature of this model is its enlarged "periphery" type head, which functions as an integrated washer and successfully distributes the pressing force over the largest possible surface of the wooden element. This specific design provides extremely powerful clamping between the details, completely eliminating the risk of sinking or passing the head through the material, ensuring stability of structures exposed to constant tensile forces and strong structural stresses.

The product features a professional TORX slot (star), which provides superior mechanical engagement with the installation tool compared to classic PH or PZ systems. This allows the application of extremely high torque without the risk of the bit slipping and without the need to exert tiring physical pressure on the part of the operator. The modern self-tapping tip type "17" acts as a precision wood drill, which easily drills even the hardest wood and prevents cracks or splits, including when installing in critical proximity to edges. The additionally milled grooved part on the screw shank and the interrupted screw line effectively reduce contact friction, protect cordless machines from overheating and speed up work when driving deep.

Purpose:

• For the construction of responsible and heavy wooden structures, roof trusses, gazebos, sheds, pergolas and garden facilities
• For furniture production when assembling solid parts, thick-walled panels and load-bearing elements
• For precise installation of exterior wooden joinery, exterior window shutters and facade cladding made of natural material
• For secure assembly of hard and softwood parts subjected to intense climatic, dynamic and structural stresses

Main advantages:

• Optimal structural safety thanks to the wide head circumference, distributing the load without damaging the base
• Increased productivity through the interrupted thread structure, facilitating fast drilling and smooth screw travel in depth
• Effective protection of the material from delamination through the geometry of the cutting tip, preventing cracks in the wood fibers
• Long-lasting protection in exterior conditions thanks to the durable yellow zinc coating against corrosion and moisture
• Reduced load on the installation equipment due to the milled ribs on the stem, which reduce resistance during operation
• Maximum grip and zero risk of bit slippage due to the deep and precisely calibrated TX25 slot

Technical characteristics:

• Head type: Wide brim
• Slot type: TORX (TX25)
• Tip: Type 17 (Self-tapping)
• Coating: Yellow zinc (Zn)
• Diameter: 4.5 mm
• Length: 40 mm
• Thread length: 24 mm
• Quantity in package: 1000 pieces