Help with locks

Common Door Locks

Latch

This is your basic type of latch. It is commonly used on a door that does not need to be locked such as a living room or dining room door. It is available in tubular and case form and Heavy Sprung options when normally used with solid handles, where extra lift is required to return the handle to its normal position.

Bathroom Lock

This Lock type is normally used in conjunction with either a set of Lever Bathroom furniture or a set of Lever on Rose and a Turn and Release. It is commonly used on a door that needs to be locked for privacy such as a bathroom door.

Bathroom Deadbolt

This Lock type is normally used in conjunction with a Turn and Release only. It is commonly used on a door that needs to be locked for privacy such as a bathroom door or cubicle door.

Sashlock

This type of lock is operated by a set of Lever Lock furniture which retracts the latch bolt and allows a key or cylinder to be fitted and operate the deadbolt. This lock is most commonly used on Back doors, Store cupboards and Offices. A Sashlock is available in three different profiles such as Standard – where the deadbolt is operated by a Mortice Lever key, Euro and Oval Profile – where the deadbolt is operated by a Euro or Oval Profile shaped cylinder fitted in conjunction with the Sashlock.

Deadlock

This type of lock is commonly used on Store cupboards and were additional security is required like a Front door. It consists of a deadbolt only which is operated by a Mortice lever key, Euro or Oval profile cylinder. Like a Sashlock it is available in three Profiles – Standard, Euro and Oval.

Standard Profile

This is the term referring to a key hole shape which is most commonly used throughout the UK.  The Standard profile is a small sized hole for a standard UK stem key to be inserted.

Euro Profile

This is the term referring to cylinder lock shape which is widely used throughout the UK.  The Euro profile is an over sized large key hole shape of cylinder.

Oval Profile

This is the term referring to cylinder lock shape which is widely used throughout the UK.  The Oval profile is a large oval hole shape of the cylinder.

DIN Standard Lockcases

These type of lockcases are commonly supplied in commercial and exclusive residential developments. They are manufactured to the European DIN Standards and meet the dimensional recommendations of BS8300 and approved document M.

British Standard

The UK’s National Kitemark Scheme providing reassurance that rigorous quality standards have been applied to a product.  Particularly relevant to external locks as British Standard BS3621 Locks are often specified by House Insurance providers.

Cylinder and Turn

This type of cylinder is operated by a key on one side of the door and a thumbturn on the other. It is normally fitted in conjunction with a cylinder Sashlock or Deadlock, were a door may be required to be locked when not in use or for privacy when somebody is in the room like a Doctors surgery. These are available in both Oval and Euro Profile.

Double Cylinder

This type of cylinder is operated by a key on both sides of the door. It is fitted in conjunction with a cylinder Sashlock or Deadlock, were a door is required to be locked from both sides and only accessible by means of a key. These are available in both Oval and Euro Profile.

Single Cylinder

This type of cylinder is operated by a key on one side of the door. It is fitted in conjunction with a cylinder Sashlock or Deadlock, were a door is required to be locked from one side only and accessible by means of a key. Such as store cupboards. These are available in both Oval and Euro Profile.

Lock Sizes

It is important to note that most locks come in two common sizes, 63mm (2.5") and 76mm (3"). This is the depth of the lock i.e how far it sits into the door. If a Backset measurement is given this is the distance from the face plate to the centre of the spindle hole. Most the Lockcases have lock centres of 57mm which is the distance from the centre of the handle to the centre of the keyhole. If you want all your handles to match throughout the house then you ideally want all the locks i.e tubular latches, bathroom locks and sash locks to match i.e all 63mm or all 76mm. You should also match the finish of the locks to the handles. For Chrome and Satin Chrome handles choose the locks with Stainless Steel finish and for Brass handles the Polished Brass finish.

Conversion Chart - mm to inch’s

All of our dimensions are quoted in Millimeters. Please find our conversion chat below. T he sizes have been rounded up to the nearest Millimeter.

• 1 inch = 25mm
• 2 inches = 50mm
• 3 inches = 76mm
• 4 inches = 100mm
• 5 inches = 127mm
• 6 inches = 152mm
• 7 inches = 177mm
• 8 inches = 203mm
• 9 inches = 228mm
• 10 inches = 254mm
• 11 inches = 279mm
• 12 inches = 304mm
• 13 inches = 330mm
• 14 inches = 335mm
• 15 inches = 381mm
• 16 inches = 406mm
• 17 inches = 431mm
• 18 inches = 457mm
• 19 inches = 482mm
• 20 inches = 508mm

Quality and Care

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