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2. Bolt (fastener) - Wikipedia

   en.wikipedia.org/wiki/Bolt_(fastener)

   Steel fasteners (grade 2,5,8) - the level of strength; Stainless steel fasteners (martensitic stainless steel, austenitic stainless steel), Bronze and brass fasteners - water proof usage; Nylon fasteners - used for the light material and water proof usage. In general, steel is the most commonly used material of all fasteners: 90% or more. [8]

3. Screw - Wikipedia

   en.wikipedia.org/wiki/Screw

   A lathe of 1871, equipped with leadscrew and change gears for single-point screw-cutting A Brown & Sharpe single-spindle screw machine. Fasteners had become widespread involving concepts such as dowels and pins, wedging, mortises and tenons, dovetails, nailing (with or without clenching the nail ends), forge welding, and many kinds of binding with cord made of leather or fiber, using many ...

4. Swage nut - Wikipedia

   en.wikipedia.org/wiki/Swage_nut

   A swage nut or self-clinching nut is a type of nut or threaded insert that is used on sheet metal. It permanently anchors itself to the sheet metal by swaging the surrounding material. Generally, the swage nut is made of a hard metal such as stainless steel , which is inserted into a pre-drilled hole in a softer ductile material such as aluminum .

5. Nut (hardware) - Wikipedia

   en.wikipedia.org/wiki/Nut_(hardware)

   Sex bolt: Barrel nut, barrel bolt, binding barrel, Chicago screw, post and screw or connector bolt Has a barrel-shaped flange and protruding boss that is internally threaded Split nut: Split lengthwise into two pieces (opposed halves) so that its female thread may be opened and closed over the male thread of a bolt or leadscrew Sleeve nut ...

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7. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   The average carbon footprint of stainless steel (all grades, all countries) is estimated to be 2.90 kg of CO 2 per kg of stainless steel produced, [88] of which 1.92 kg are emissions from raw materials (Cr, Ni, Mo); 0.54 kg from electricity and steam, and 0.44 kg are direct emissions (i.e., by the stainless steel plant). Note that stainless ...