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  2. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...

  3. Anchor channel - Wikipedia

    en.wikipedia.org/wiki/Anchor_channel

    Anchor channels, invented by Anders Jordahl in 1913, are steel channels cast flush in reinforced concrete elements to allow the installation of channel bolts for the fastening of components. Anchor channels consist of steel C-shaped channels and anchors (mostly headed studs ) which are connected to the channel by welding or riveting/forging.

  4. Joint compound - Wikipedia

    en.wikipedia.org/wiki/Joint_compound

    Kitchen renovation spackling to cover holes and tape between sheetrock boards Drywall with joint compound applied.. Joint compound (also known as drywall compound, drywall mud, joint cement or mastic) is a white powder of primarily gypsum dust mixed with water to form a paste the consistency of cake frosting, which is spread onto drywall and sanded when dry to create a seamless base for paint ...

  5. Plastic extrusion - Wikipedia

    en.wikipedia.org/wiki/Plastic_extrusion

    A simple plastic extrusion screw Extruder screws From Boston Matthews. Most screws have these three zones: Feed zone (also called the solids conveying zone): this zone feeds the resin into the extruder, and the channel depth is usually the same throughout the zone.

  6. Self-tapping screw - Wikipedia

    en.wikipedia.org/wiki/Self-tapping_screw

    Self-tapping screws can be divided into two classes: [3] those that displace material (especially plastic and thin metal sheets) without removing it, known as "thread-forming" self-tapping screws, and self-tappers with sharp cutting surfaces that remove the material as they are inserted, termed "thread-cutting" self-tapping screws.

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  8. Crack tip opening displacement - Wikipedia

    en.wikipedia.org/wiki/Crack_tip_opening_displacement

    CTOD is a single parameter that accommodates crack tip plasticity. It is easy to measure when compared with techniques such as J integral. It is a fracture parameter that has more physical meaning than the rest. However, the equivalence of CTOD and J integral is proven only for non-linear materials, but not for plastic materials.

  9. Angle bracket (fastener) - Wikipedia

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

    Angle brackets feature holes in them for screws. A typical example use of is a shelf bracket for mounting a shelf on a wall. In general, angle brackets have a wide range of applications, and are used, among other things, in building construction , mechanical engineering or to join two pieces of furniture

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