4000 Series Key in Knob Locksets

The Gainsborough 4000 Series Heavy Duty Cylindrical Locksets are designed and manufactured for use in commercial buildings, including hotels and offices, but are also ideal for residential entrances and living areas.

Offering a variety of functions, these heavy duty locksets feature a stylish spherical knob design with a choice of 3 backsets: 60mm, 70mm and 127mm. The 4000 Series features stainless steel knobs and roses and is easy to install.

The 4000 Series features a 12.7mm throw latchbolt and is fire rated to Australian Standard AS 1905.1.2005 fire doors, while the 4000 Series can be specially keyed to suit any individual situation.