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2. Door handle - Wikipedia

   en.wikipedia.org/wiki/Door_handle

   This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard ...

3. Door lock - Wikipedia

   en.wikipedia.org/wiki/Door_Lock

   a deadbolt lock; a door chain; a locking door handle; an electromagnetic lock, which holds a door shut when electricity is supplied to it; a keycard lock, commonly used on hotel doors; a mortise lock, a lock installed in a hollowed-out pocket within a door; a rim lock, a lock fixed to the exterior of the door

4. Deadbolt - Wikipedia

   en.wikipedia.org/wiki/Deadbolt

   Door with two locks, one in the doorknob and a separate deadbolt. A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [1] It is distinct from a spring bolt lock because a deadbolt can only

5. Titanium nitride - Wikipedia

   en.wikipedia.org/wiki/Titanium_nitride

   TiN is also widely used as a top-layer coating, usually with nickel- or chromium-plated substrates, on consumer plumbing fixtures and door hardware. As a coating, it is used in aerospace and military applications and to protect the sliding surfaces of suspension forks of bicycles and motorcycles , as well as the shock shafts of radio-controlled ...

6. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   They contain between 10.5% and 27% chromium with very little or no nickel. Due to the near-absence of nickel, they are less expensive than austenitic stainless steels. Representative alloys include Type 409, Type 429, Type 430, and Type 446. Ferritic stainless steels are present in many products, which include: Automobile exhaust pipes [49]

7. Extrusion - Wikipedia

   en.wikipedia.org/wiki/Extrusion

   Zinc (400 to 650 °F (200 to 350 °C)) rods, bar, tubes, hardware components, fitting, and handrails. Steel (1825 to 2375 °F (1000 to 1300 °C)) rods and tracks. Usually plain carbon steel is extruded, but alloy steel and stainless steel can also be extruded.