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2. Shear pin - Wikipedia

   en.wikipedia.org/wiki/Shear_pin

   Additionally, shear-pins are frequently used in anti-tank mine fuzes, to prevent them from being triggered by much lighter, non-target vehicles such as motorcycles. Typically, the shear-pin in an anti-tank mine is designed to snap (and release the spring-loaded firing pin) when a weight in excess of 1500 kilograms is applied to the pressure plate.

3. Building blocks (toy) - Wikipedia

   en.wikipedia.org/wiki/Building_blocks_(toy)

   The Lego system is the most widely used clamp building block system in the world. Building blocks (also construction blocks) are modular construction parts, usually made of plastic, which can be assembled in a form-fit manner. The basic components are usually cuboid-shaped, cylindrically studded at the top in a grid pattern, hollow-bodied at ...

4. Toy block - Wikipedia

   en.wikipedia.org/wiki/Toy_block

   KEVA Planks is a wooden block construction toy. Froebel gifts are a range of educational materials first used in the original Kindergarten. Montessori sensorial materials are a range of educational materials including wooden blocks. Pattern blocks and Cuisenaire rods are sets of small blocks used in mathematics education and also in block play.

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. Shear strength - Wikipedia

   en.wikipedia.org/wiki/Shear_strength

   In engineering, shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force.

7. Spring pin - Wikipedia

   en.wikipedia.org/wiki/Spring_pin

   A spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Spring pins have a body diameter which is larger than the diameter of the hole they are intended for, and a chamfer on either one or both ends to facilitate starting the pin into the hole.