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  2. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    Hexagon slotted nuts and castle nuts with metric coarse and fine pitch thread – Product grades A and B: Active: DIN 935-2: M42 to M160x6 hexagon head nuts; product grade B: Active: DIN 935-3: Hexagon slotted nuts with metric coarse pitch thread – Product grade C: Active: DIN 936: M8 to M52 and M8x1 to M52x3 hexagon thin nuts; product grades ...

  3. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    Floor Level of an existing or proposed building or concrete pad FN or F/N: flag note, flagnote; find number: 1. Flagnote: A flagnote is a note that is called out in specific spots in the field of the drawing. It is numbered with a stylized flag symbol surrounding the number (or sometimes a delta symbol). A general note applies generally and is ...

  4. Nut (hardware) - Wikipedia

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

    The cage has two wings that when compressed allow the cage to be inserted into the square holes Clip-on nut: J-nut or U-nut, sheet metal nut, speed nut (ambiguously) Designed to be clipped to sheet metal Coupling nut: Extension nut A threaded fastener for joining two male threads, most commonly a threaded rod,[1][2] but also pipes Flange nut ...

  5. List of ISO standards 3000–4999 - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_standards_3000...

    ISO 4162:2012 Hexagon bolts with flange — Small series — Product grade A with driving feature of product grade B; ISO 4164:2012 Mopeds — Engine test code — Net power; ISO 4165 Road vehicles — Electrical connections — Double-pole connection; ISO 4166:1979 Hexagon nuts for fine mechanics — Product grade F [Withdrawn without replacement]

  6. Flange nut - Wikipedia

    en.wikipedia.org/wiki/Flange_nut

    A self-aligning nut, also known as a spherical nut [2] or leveling nut, is a type of nut used in applications where the fastener is not perpendicular to the surface to which the nut anchors. A flange nut is used inside a specially shaped dished-out washer. The device is commonly used in the aerospace industry.

  7. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    The simplest – and strongest – form of anchor bolt is cast-in-place, with its embedded end consisting of a standard hexagonal head bolt and washer, 90-bend, or some sort of forged or welded flange (see also stud welding). The last are used in concrete-steel composite structures as shear connectors. [6]

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