Winkhaus 4941787 – STV-Thunderbolt 45/92 20mm Faceplate Radius End

The 5-Point Locking System especially designed with increased tolerances for door installers. Unlike conventional hook locking Systems, the ThunderBolt™ has up to 50% greater fitting tolerances. This allows for a greater variation in airgap dimensions when the door is installed. The ThunderBolt™ range is available with several faceplate and backset options, Features 20mm throw twin deadbolts – High security nickel plated alloy deadbolts fully penetrate the keep rail and help prevent forcing apart of the sash and frame Weather seal compression adjustment in the keeps – Together with the enhanced tapered deadbolt design, the adjustment in the keeps provides for low operating forces. With ±2mm adjustment it is possible to adjust for misalignment of the door during and after installation Heavy duty steel keeps – Heavy duty keeps manufactured using high grade steel, plated to comply with Grade 5 corrosion resistance requirement of BS EN1670 European Standard Latch and centre deadbolt – Engineered alloy sprung latch and nickel plated steel deadbolt provides the ThunderBolt™ with maximum strength in the centre of the door High performance gearbox – Tested to 100,000 cycles the sprung gearbox offers the lowest possible operating forces and helps prevent handle ‘droop’