ASEC Thumbturn Screw-In Cylinder This ASEC thumbturn screw-in cylinder is designed specifically for the internal side of metal door locks, allowing easy thumb-turn operation from inside without needing a key. It’s a reliable, entry-level choice for applications where quick exit or entry is needed, such as sheds, gates, garages, outbuildings, or any metal-framed door using mortice-type locks. Key Features: Self-centring design for accurate alignment and easy installation Thumbturn operation – convenient manual turning from the inside Suitable for most mortice-type metal door locks Trusted ASEC brand – known for dependable access hardware Finish: Satin Chrome (SC) as standard This cylinder is manufactured by ASEC, a trusted name in access hardware, and is widely used by locksmiths and installers for it’s reliability and value. Ideal for sheds, gates, garages, outbuildings or any metal framed door requiring a screw-in cylinder solution. Why choose this ASEC thumbturn cylinder? Perfect for internal use where key access isn’t required on one side. No-frills design means straightforward security and functionality at a great price. Ideal replacement or upgrade for existing metal door setups. Installation Note: Measure your existing cylinder carefully for fit (standard screw-in thread). Compatible with most metal mortice locks—always check compatibility before fitting. If you need keyed cylinders on the external side (pairing with this thumbturn), bulk quantities, or matching products, just get in touch—we can help!
