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  2. ASTM A490 - Wikipedia

    en.wikipedia.org/wiki/ASTM_A490

    ASTM A490 and ASTM A490M are ASTM International standards for heavy hex structural bolts made from alloy steel.The imperial standard is officially titled Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength, while the metric standard (M) is titled Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural ...

  3. ASTM F568M - Wikipedia

    en.wikipedia.org/wiki/ASTM_F568M

    This standard defines property classes, the metric equivalent of a screw grade, that are almost identical to those defined by ISO 898-1, [2] except for the addition of the 8.8.3 and 10.9.3 classes. These two additional standards are fasteners that have the same mechanical properties as their base property class (i.e. 8.8 and 10.9), but are made ...

  4. ASTM A325 - Wikipedia

    en.wikipedia.org/wiki/ASTM_A325

    ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1 ⁄ 2 to 1 + 1 ⁄ 2 inches (13 to 38 mm) in diameter. [1]

  5. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    Style 1 hexagon nuts with metric fine pitch thread; property classes 6 and 8: Withdrawn: DIN EN ISO 8673: ISO 8673: DIN 971-2: Style 2 hexagon nuts with metric fine pitch thread; property classes 10 and 12: Withdrawn: DIN EN ISO 8674: ISO 8674: DIN 972: M5 to M39 hexagon nuts; style 1; product grade C (modified version of ISO 4034) Withdrawn ...

  6. List of screw drives - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_drives

    This shallow recess also grants off-angle drivability to allow work in hard-to-reach places. The design of the recess and shorter head height allows for more aesthetically pleasing work. This is in hopes that it will enhance the beauty and style of a product. Instead of covering up the screw head that it serves as an aesthetic part of the design.

  7. Bolt (fastener) - Wikipedia

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

    Hanger bolt - Bolt that has no head, machine threaded body followed by a wood threaded screw tip. Allow nuts to be attached to what is really a screw. Hex bolt - Bolt with a hexagonal head and threaded shank. Section immediately under head may be unthreaded for fastening thicker materials. J bolt - Bolt shaped like the letter J, used for tie downs.

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