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2. Positive locking device - Wikipedia

   en.wikipedia.org/wiki/Positive_locking_device

   The following is a list of positive locking devices: [1] A split beam nut; A castellated nut and a split pin; A hex nut or cap screw and a tab washer; A hex nut or cap screw and a lock plate; Safety wiring with various types of fasteners; 7-122. GENERAL. The word safetying is a term universally used in the aircraft industry.

3. Latch - Wikipedia

   en.wikipedia.org/wiki/Latch

   [1] [2] When the door is pushed closed, the angled edge of the latch bolt engages with the lip of the strike plate; a spring allows the bolt to retract. Once the door is fully closed, the bolt automatically extends into the strike plate, holding the door closed.

4. Draught excluder - Wikipedia

   en.wikipedia.org/wiki/Draught_excluder

   A door draught excluder is placed at the bottom of a door to cover the gap located at the threshold. [1] [2] In the Victorian era these draught excluders would be sausage-shaped and made from fabric stuffed with sawdust. [3] Tubular sand-filled fabric draught excluders are commonly referred to as "door snakes" in Australia.

5. Screwfix - Wikipedia

   en.wikipedia.org/wiki/Screwfix

   Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .

6. Disc tumbler lock - Wikipedia

   en.wikipedia.org/wiki/Disc_tumbler_lock

   The underside of a disc tumbler lock A key for a disc tumbler lock. A disc tumbler or disc detainer lock is a lock composed of slotted rotating detainer discs. The lock was invented by Finnish founder of Abloy, Emil Henriksson (1886–1959) in 1907 and first manufactured under the Abloy brand in 1918.

7. Pinch point hazard - Wikipedia

   en.wikipedia.org/wiki/Pinch_point_hazard

   A nip point is a type of pinch point involving rotating objects, such as gears and pulleys. [2] Injuries can range from minor such as blisters to severe like amputations and fatalities. [ 3 ] Examples of pinch point hazards include gaps in closing doors and objects swinging or being lowered near fixed objects.