1. Ironmongery
  2. Door Locks & Security

Thumb Turn Locks & Euro Cylinders

Enhance your home’s privacy and fire safety with our extensive range of thumb turn locks. Designed to allow quick, keyless exits from the inside while maintaining secure keyed access from the outside, a thumb turn lock is an essential hardware choice for both residential and commercial properties. We stock industry-leading brands including Yale, ERA, Securefast, and Serozzetta, ensuring you get durable security you can trust.

Euro Cylinder Thumb Turn Locks

Upgrade your uPVC, composite, or timber doors with our high-security Euro cylinder thumb turns. Ranging from standard 6-pin cylinders to maximum security 1-Star and 3-Star Yale Platinum cylinders, these locks protect against lock snapping, bumping, and picking. Measuring from 30-30mm up to 45-50mm, they offer an effortless exit route in the event of an emergency without fumbling for keys.

Bathroom Thumb Turn Locks

Privacy is paramount in any washroom, making a dedicated bathroom thumb turn lock the perfect solution. These specifically designed turn-and-release mechanisms (often called snibs) allow occupants to easily lock the door from the inside. Crucially, they feature a coin-slotted emergency release on the exterior face, ensuring access can be gained from the outside if someone becomes trapped or unwell. We also stock disabled-indicating thumbturns featuring clear red/green occupancy indicators.

Escutcheons & Turn and Releases

Match your existing door hardware perfectly with our selection of standalone thumbturn escutcheons and turn-and-release sets. Available in a huge variety of premium finishes - including Matt Black, Polished Chrome, Antique Brass, and Satin Nickel - from designer brands like Stanza, Jigtech, and Eclipse.

Frequently Asked Questions | FAQs

Are thumb turn locks safe to use on external doors?

Yes, but placement matters. A thumb turn lock is highly recommended for main exit doors (like front doors or communal flat doors) because it allows for a rapid, keyless exit in the event of a fire. However, they should not be installed on doors with single-glazed glass panels near the lock, as an intruder could break the glass, reach through, and simply turn the knob to gain entry.

How does a bathroom thumb turn lock work?

A bathroom thumb turn lock (often paired with a tubular mortice bathroom latch) provides simple, keyless privacy. You twist the thumbturn on the inside of the bathroom to throw the deadbolt. On the outside of the door, there is a circular release slot. In an emergency, this slot can be turned using a coin or a flathead screwdriver to unlock the door from the outside, ensuring safety if someone slips or gets stuck inside.

How do I measure a Euro cylinder thumb turn lock?

To ensure your new thumb turn lock fits perfectly, you need to measure your existing cylinder. Remove the cylinder fixing screw from the edge of the door and slide the cylinder out. Measure from one end of the cylinder to the centre of the rotating cam (the middle screw hole), and then from the centre of the cam to the other end. This will give you a dual measurement (e.g., 35-45mm). Always ensure the thumbturn knob is on the correct internal side when refitting.

Yale Yale Yale / Yale 6 Pin Euro Thumbturn Cylinder 40-10-45mm Nickel
5% Off
( 25 )

£17.19 was £18.38

ex. VAT £14.32 Each

Yale Yale / Yale Platinum 3 Star Euro Thumbturn Cylinder 35-35mm Nickel
( 13 )

£59.49

ex. VAT £49.57 Each

Securefast Securefast / 6 Pin Euro Thumbturn Cylinder 30-30mm Nickel
25% Off
( 44 )

£11.00 was £14.68

ex. VAT £9.17 Each

Yale Yale / Yale 6 Pin Euro Thumbturn Cylinder 30-10-30mm Nickel
( 36 )

£15.69

ex. VAT £13.07 Each

Securefast Securefast / 6 Pin Euro Thumbturn Cylinder 40-40mm Nickel
20% Off
( 236 )

£11.99 was £15.28

ex. VAT £9.99 Each

Eclipse Eclipse / Eclipse Bathroom Thumbturn & Release Matt Black
( 22 )

£8.99

ex. VAT £7.49 Each

Securefast Securefast / 6 Pin Euro Thumbturn Cylinder 35-35mm Nickel
30% Off
( 236 )

£12.00 was £17.38

ex. VAT £10.00 Each

Serozzetta Serozzetta / Serozzetta Thumbturn Escutcheon Polished Chrome
( 23 )

£12.19

ex. VAT £10.16 Each

Serozzetta Serozzetta / Serozzetta Thumbturn Escutcheon Antique Brass
( 12 )

£12.19

ex. VAT £10.16 Each

Securefast Securefast / 6 Pin Euro Thumbturn Cylinder 40-45mm Nickel
15% Off
( 236 )

£12.98 was £15.28

ex. VAT £10.82 Each

Serozzetta Serozzetta / Serozzetta Turn & Release On Round Rose Satin Nickel
( 7 )

£9.79

ex. VAT £8.16 Each

Yale Yale / Yale 1 Star 6 Pin Euro Thumbturn Cylinder 35-10-45mm Nickel
( 30 )

£24.49

ex. VAT £20.41 Each

ERA ERA / ERA 6 Pin Euro Thumbturn Cylinder 45-45mm Satin Nickel
( 177 )

£17.99

ex. VAT £14.99 Each

Yale Yale / Yale 6 Pin Euro Thumbturn Cylinder 35-10-35mm Nickel
( 25 )

£18.39

ex. VAT £15.32 Each

Eclipse Eclipse / Disabled Indicating Thumbturn & Release Satin 52x8mm
( 1 )

£12.79

ex. VAT £10.66 Each

ERA ERA / ERA 6 Pin Euro Thumbturn Cylinder 35-35mm Satin Nickel
( 26 )

£15.99

ex. VAT £13.32 Each

Rack Bolt Thumb Turn
( 48 )

Product code: 15707

Rack Bolt Thumb Turn

£3.99

ex. VAT £3.32 Each

Stanza Stanza / Stanza Turn and Release Matt Black
( 11 )

£7.99

ex. VAT £6.66 Each

ERA ERA / ERA 6 Pin Euro Thumbturn Cylinder 40-40mm Satin Nickel
( 177 )

£17.99

ex. VAT £14.99 Each

Stanza Stanza / Stanza Turn and Release Satin Chrome
( 11 )

£7.99

ex. VAT £6.66 Each

Yale Yale / Yale 6 Pin Euro Thumbturn Cylinder 40-10-40mm Nickel
( 25 )

£17.89

ex. VAT £14.91 Each

Yale Yale / Yale 6 Pin Euro Thumbturn Cylinder 40-10-45mm Brass
( 25 )

£18.39

ex. VAT £15.32 Each

Eclipse Eclipse / Disabled Indicating Thumbturn & Release Polished 52x8mm
( 4 )

£13.79

ex. VAT £11.49 Each

Stanza Stanza / Stanza Turn and Release Polished Chrome
( 2 )

£7.99

ex. VAT £6.66 Each