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    DOUBLE THREADED STANDOFF FASTENER
    3.
    发明申请
    DOUBLE THREADED STANDOFF FASTENER 审中-公开

    公开(公告)号：US20170314594A1

    公开(公告)日：2017-11-02

    申请号：US15584383

    申请日：2017-05-02

    申请人： NUCOR CORPORATION ,  ASIA FASTENING (US), INC.

    发明人： Lionel E. Dayton ,  Richard W. Lukes

    IPC分类号： F16B5/02 ,  E04B1/41 ,  F16B25/00

    摘要： Presently disclosed is a standoff fastener for use in a compound floor structure. The threaded fastener includes a threaded standoff portion designed to accept a nut which has a diameter larger than a head portion of the standoff fastener. The head portion is located centrally within the fastener in order to reduce a tendency of the fastener to pivot within a driver during the fastening process.

    Weldless building structures
    5.
    发明授权
    Weldless building structures 有权

    公开(公告)号：US10371192B2

    公开(公告)日：2019-08-06

    申请号：US15722509

    申请日：2017-10-02

    申请人： NUCOR CORPORATION ,  ASIA FASTENING (US), INC.

    发明人： Lionel E. Dayton ,  Richard W. Lukes

    IPC分类号： E04B1/24 ,  F16B7/18 ,  F16B25/10 ,  E04B5/40 ,  E04C3/11 ,  F16B25/00 ,  E04B1/38 ,  E04B1/41

    摘要： A building structure including a first building member and a second building member may be connected by a plurality of fasteners, each fastener having a head, a threaded portion having a through hardness of between HRB 70 and HRC 40, a thread-forming portion of at least HRC 50 hardness enabling the fastener to form threads in at least the second steel building member, and a fluted lead portion of at least HRC 50 hardness with a nominal diameter between 70 and 95% of major diameter, such that the fastener is capable of providing a ratio of strip torque to thread-forming torque of at least 3.0 and a ratio of strip torque to drive torque greater than 6.0 when the second steel building member having a thickness of 0.25 inch and the fluted lead portion having at least one diameter within nominal diameter between 80 and 98% of major diameter.

    Weldless building structures
    9.
    发明授权
    Weldless building structures 有权
    无缝建筑结构

    公开(公告)号：US08636456B2

    公开(公告)日：2014-01-28

    申请号：US13798956

    申请日：2013-03-13

    申请人： Nucor Corporation ,  Asia Fastening (US), Inc.

    发明人： Lionel E. Dayton ,  Richard W. Lukes

    IPC分类号： F16B25/10

    CPC分类号： F16B25/103 ,  E04B1/24 ,  E04B1/38 ,  E04B1/4157 ,  E04B5/40 ,  E04B2001/2415 ,  E04B2001/2418 ,  E04B2001/2448 ,  E04B2001/2454 ,  E04B2001/2457 ,  E04B2001/2463 ,  E04B2001/2472 ,  E04B2001/2484 ,  E04B2001/2487 ,  E04B2001/2496 ,  E04C3/11 ,  F16B7/18 ,  F16B7/185 ,  F16B25/0021 ,  F16B25/0057 ,  F16B25/0063 ,  F16B25/0084 ,  F16B25/10 ,  F16B25/106

    摘要： A building structure including a first building member and a second building member may be connected by fasteners, each fastener having a head, a tapered lead portion having an angle from 30 to 60° of at least HRC 50 hardness adapted to start into a pilot hole, a thread-forming portion of at least HRC 50 hardness adapted to thread the fastener into at least the second steel building member, and a threaded portion having a through hardness from about HRB 70 to HRC 40, such that the fastener is capable of providing a ratio of failure torque to thread-forming torque of at least 3.0 and a ratio of failure torque to drive torque greater than 10 when the second steel building member has a thickness of about 0.25 inch and the pilot hole has at least one diameter within nominal diameter from 80 to 98% of major diameter.

    摘要翻译： 包括第一建筑构件和第二建筑构件的建筑结构可以通过紧固件连接，每个紧固件具有头部，具有至少HRC 50硬度的30至60°的角度的锥形引导部分，其适于开始进入导向孔 至少HRC50硬度的螺纹形成部分，其适于将紧固件拧入至少第二钢结构构件中;以及螺纹部分，具有从约HRB 70至HRC 40的贯穿硬度，使得紧固件能够提供 当第二钢结构构件具有约0.25英寸的厚度并且导向孔具有至少一个直径在标称范围内时，故障扭矩与螺纹形成扭矩的比率至少为3.0以及故障转矩与驱动扭矩大于10的比率 直径为80〜98％的大直径。