Fischer 7.5 x 42 FFS Window Frame Fixing Screws (100 Box) 532922

• The fischer window frame screw FFS is a special screw (with a length of up to 302 mm) with a flat head for the cost-effective installation of window frames without plugs
• The flat head design is particularly suitable for window frames made from aluminium and plastic
• The ift Rosenheim Testing Institute confirms their special suitability for the fixing of plastic widows into brick masonry
• The small drill hole diameter of 6 mm and the screwing-in of the screw without cleaning the drill hole enable efficient series fixings
• The high-deep thread on the screw tip and the milled ribbing reduce the screw-in torque and enable an energy-saving installation
• The continuous special thread prevents the window frame from being pulled against the substrate
• This means that the frame is secured to the building material without tensile force or stress

Top Features

• Cost-effective screw installation without plugs
• For all solid and perforated building materials
• Fast series installation due to small drill hole diameter of 6 mm
• Stress-free, durable fixing of the frame
• Continuous thread prevents the frame from being pulled
• Power-saving installation: Special thread reduces force required for screwing

Advantages

• Screw installation without plug for economical processing
• The small drill bit diameter of 6 mm allows for efficient series installation
• The continuous thread ensures a stress-free fixing of the frame in the substrate
• The high-low-thread at the screw tip as well as several cutting notches reduce the amount of force required for screwing in the screws
• The installation process can be completed without excessive effort
• According to the ift Rosenheim suitable for the fixation of a plastic window in brick masonry

Functioning

• Note the drill hole and screw-in depths for the different building materials listed in the table
• Recommended for installation of plastic and aluminium profiles
• Cylinder head screws are recommended for recessed installation in wooden profiles