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2. Threaded rod - Wikipedia

   en.wikipedia.org/wiki/Threaded_rod

   Tap-end studs have threads at extreme ends of the body with unequal thread engagement length, while double-end stud bolts have equal thread length at both ends. Apart from these, there are stud bolts for flanges, which are fully threaded studs with chamfered ends, and double-end studs with reduced shank for special bolting applications. For ...

3. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   double-ended screw dowel screw hanger bolt: handrail bolt: Similar to a wood screw but with two pointed ends and no head, used for making hidden joints between two pieces of wood. A hanger bolt has wood screw threads on one end and machine threads on the other. A hanger bolt is used when it is necessary to fasten a metal part to a wood surface ...

4. Screw thread - Wikipedia

   en.wikipedia.org/wiki/Screw_thread

   A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a threaded fastener.

5. Bolt (fastener) - Wikipedia

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

   J bolt - Bolt shaped like the letter J, used for tie downs. Only the straight section is threaded for a nut. Rock bolt - Used in tunnel construction to stabilize walls. Sex bolt or Chicago bolt - Bolt that has a male and female part with interior threads and bolt heads on either end. Commonly used in paper binding.

6. Unified Thread Standard - Wikipedia

   en.wikipedia.org/wiki/Unified_Thread_Standard

   The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. It is the main standard for bolts, nuts, and a wide variety of other threaded fasteners used in these countries.

7. ISO 898 - Wikipedia

   en.wikipedia.org/wiki/ISO_898

   Part 1 defines the mechanical properties of bolts, screws, and studs.It specifically applies to fasteners that have an ISO metric screw thread as defined in ISO 68-1.The properties are defined for M1.6-39 with coarse threads and M8-39 with fine threads.