Locked Out, Gain Entry, Lost Keys, Burglary Repairs
Lockouts, Lost Keys, Snapped Key, Key Codes
Shops, Offices, Warehouses & Factories, Door Entry
Additional information about Timpson Locksmiths
Preston & Manchester Excellence Centres
(Reg: 000726 / 001508)
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| Glossary of Locksmith Terminology | 0800 0 187 187 |
The following Glossary of Locksmith Terminology is provided courtesy of the Master Locksmith Association (MLA). Click on a letter below to be taken to its corresponding terms.
| Glossary - H |
Handing of doors, windows, cupboards, and other openings
Hasp and staple - A fastening in two pieces for a door or box to be secured by a padlock. The hinged part is called the hasp which is fitted to the door or lid of a box and shuts over the staple, which is on the door frame (or other leaf of a pair of doors) or the body of the box. For real security it is essential to use a hasp and staple with concealed fixing, i.e. the heads of the fixing screws are completely covered when the padlock is locked in position, as otherwise the fitment can easily be removed by withdrawing the screws affording nil security.
High Lift Lever - There are two kinds known by this name. One like A is truly a high lift lever because it must be lifted as high as possible to allow the bolt to move. The other kind as B has to be lifted high but not to the full extent. It can be overlifted and then the portion of bar below the gating prevents movement of the bolt. This form of lever is sometimes called a high middle lift lever which serves as a distinctive if not very exact term.
Hinge Bolts Fixed - steel protrusions fitted into the rear edge or hinge side of doors, closing into holes cut into the door frame, to protect from forced attack on the hinge side of the door.
Hold backstop - A thumb slide on the case of a cylinder rim nightlatch or in the forend of a cylinder mortice lock used either to hold back or alternatively deadlock the main bolt.
Hook bolt - A pivoted springbolt, the head of which is shaped in the form of a hook. Such locks or latches are usually fixed on sliding doors.
Hook Ward Key - The ward is fixed in the lock case formed as part of a circle like a wheel ward, but with a return or flange so that a cut in the key to fit would be L shape.
Horizontal lock - A mortice or rim lock having the follower hole further from the forend than the keyhole, but in the same horizontal plane. Used when knob furniture is specified to prevent the barking of knuckles on the door frame.
Tel. 0800 0 187 187