Offset U Rail multipoint locking window espagnolette bolts that are suitable for wood and uPVC windows or frames. Available in various lengths. 250mm to 800mm are two point locking and 1000mm has three point locking. Requires 1no. Nightvent Keep (WHH 355) Performance: Endurance tested to 25,000 operations Corrosion Resistance: Meets requirements of BS EN 1670:1998, Grade 3 Material Specifications: All Metal Components: Steel C1008 Gearbox body:Zinc BS1004A Coating details: Steel components - Trivalent plated 20-25microns coating thickness 25mm back set.
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