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2. Turnbuckle - Wikipedia

   en.wikipedia.org/wiki/Turnbuckle

   A turnbuckle, stretching screw or bottlescrew is a device for adjusting the tension or length of ropes, cables, tie rods, and other tensioning systems. It normally consists of two threaded eye bolts , one screwed into each end of a small metal frame, one with a conventional right-hand thread and the other with a left-hand thread.

3. Buffers and chain coupler - Wikipedia

   en.wikipedia.org/wiki/Buffers_and_chain_coupler

   Narrow gauge flat wagons, 750 mm (2 ft 5 + 1 ⁄ 2 in).Note the single buffer with a hook on the right side and a chain on the other. On some narrow-gauge lines in Europe, and on the Paris Metro, a simplified version of the loose-coupler is used, consisting of a single central buffer with a chain underneath.

4. Threaded rod - Wikipedia

   en.wikipedia.org/wiki/Threaded_rod

   A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. [1] They are designed to be used in tension. [2] Threaded rod in bar stock form is often called all-thread (ATR); other names include fully-threaded rod, redi-rod, continuously-threaded rod ...

5. Galvanization - Wikipedia

   en.wikipedia.org/wiki/Galvanization

   Galvanized surface with visible spangle Galvanization ( also spelled galvanisation ) [ 1 ] is the process of applying a protective zinc coating to steel or iron , to prevent rusting . The most common method is hot-dip galvanizing , in which the parts are coated by submerging them in a bath of hot, molten zinc.

6. Guy-wire - Wikipedia

   en.wikipedia.org/wiki/Guy-wire

   A sailboat's mast is supported by shrouds (side-to-side) and stays (fore-and-aft) – nautical equivalents of guy wires.. A guy-wire, guy-line, guy-rope, down guy, or stay, also called simply a guy, is a tensioned cable designed to add stability to a freestanding structure.

7. Galvannealed - Wikipedia

   en.wikipedia.org/wiki/Galvannealed

   The galvanising bath contains slightly over 0.1% aluminium, added to form a layer bonding between the iron and coated zinc. [2] [3] Annealing temperatures are around 500 to 565 °C. [2] Pre-1990 annealing lines used gas-fired heating; post-1990s the use of induction furnaces became common. [1]