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  2. List of thread standards - Wikipedia

    en.wikipedia.org/wiki/List_of_thread_standards

    Tables of BS Whitworth, BS Fine and BS Pipe Threads: V Thread Form (55°) 1 ⁄ 4 ″-20 BSW ISO 68-1:1998: ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads: V Thread Form ISO 68-2:1998: ISO general-purpose screw threads—Basic profile—Part 2: Inch screw threads: V Thread Form ISO 261:1998

  3. Unified Thread Standard - Wikipedia

    en.wikipedia.org/wiki/Unified_Thread_Standard

    The thread form is slightly modified to increase the minor diameter, and thus the strength of screws and taps. The major diameter still extends to within ⁠ 1 / 8 ⁠ H of the theoretical sharp V , but the total depth of the thread is reduced 4% from ⁠ 5 / 8 ⁠ H = ⁠ 5 / 8 ⁠ cos(30°) P ≈ 0.541 P to 0.52 P .

  4. 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 ...

  5. Screw - Wikipedia

    en.wikipedia.org/wiki/Screw

    The same type of screw or bolt can be made in many different grades of material. For critical high-tensile-strength applications, low-grade bolts may fail, resulting in damage or injury. On SAE-standard bolts, a distinctive pattern of marking is impressed on the heads to allow inspection and validation of the strength of the bolt. [57]

  6. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    Anchor bolts are used to connect structural and non-structural elements to concrete. [2] The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces. [3]

  7. 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]

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  9. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    M8x1 to M100x4 hexagon head bolts with fine pitch thread – Product grades A and B: Withdrawn: DIN EN ISO 8765, DIN EN ISO 8676: ISO 8765, ISO 8676: DIN 961: M8x1 to M52x3 hexagon head bolts with fine pitch thread – Product grades A and B: Withdrawn: DIN EN ISO 8676: ISO 8676: DIN 962: Designation system for fasteners: Active: DIN 963

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