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2. Shear pin - Wikipedia

   en.wikipedia.org/wiki/Shear_pin

   A sailor checks the outside diameter of a shear pin in the machinery repair shop aboard US aircraft carrier John C. Stennis. A shear pin is a mechanical detail designed to allow a specific outcome to occur once a predetermined force is applied. It can either function as a safeguard designed to break to protect other parts, or as a conditional ...

3. Nail (fastener) - Wikipedia

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

   This is then inserted into a nail-header (also known as a nail-plate), essentially a plate of iron with a small hole in it. The broad end of the pin is slightly wider than the hole of the nail-header: the smith fits the pin into the hole of the nail-header and then hammers the broad end of the pin.

4. Split pin - Wikipedia

   en.wikipedia.org/wiki/Split_pin

   A split pin, also known as a cotter pin, or cotter key in the US, [1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types.

5. Shear modulus - Wikipedia

   en.wikipedia.org/wiki/Shear_modulus

   The shear modulus is one of several quantities for measuring the stiffness of materials. All of them arise in the generalized Hooke's law: . Young's modulus E describes the material's strain response to uniaxial stress in the direction of this stress (like pulling on the ends of a wire or putting a weight on top of a column, with the wire getting longer and the column losing height),

6. Key (engineering) - Wikipedia

   en.wikipedia.org/wiki/Key_(engineering)

   Hollow spring pins provide a weaker shear strength than a solid dowel pin, and the strength may be varied by varying the wall thickness. This limited shear strength specification is designed to sustain normal operation, but then give way in the event of excessive shaft torque, thus protecting the rest of the machine from damage.

7. Blocking (construction) - Wikipedia

   en.wikipedia.org/wiki/Blocking_(construction)

   The intervals for the blocks are specified in the building code or as calculated by a structural engineer. Blocking also resists the rotational movement, or twisting, of floor joists as they deflect under load. This may take the form of diagonal cross bracing, or herringbone, bracing between floor joists.

8. Dowel - Wikipedia

   en.wikipedia.org/wiki/Dowel

   Wooden dowel pins. The dowel is a cylindrical shape made of wood, plastic, or metal. In its original manufactured form, a dowel is long and called a dowel rod, which are often cut into shorter dowel pins. [citation needed] Dowels are commonly used as structural reinforcements in cabinet making and in numerous other applications, including:

9. Shear force - Wikipedia

   en.wikipedia.org/wiki/Shear_force

   The relevant information is the area of the material being sheared, i.e. the area across which the shearing action takes place, and the shear strength of the material. A round bar of steel is used as an example. The shear strength is calculated from the tensile strength using a factor which relates the two strengths.