• What are the applications and characteristics of self-tapping screws?

    What are the applications and characteristics of self-tapping screws?

    Locking self-tapping screws are used for non-metal or soft metals, without drilling and tapping; locking self-tapping screws are pointed, so that they can be "locked and self-tapping"; ordinary screws are flat-headed and thick Consistent. Tightening the self-tapping screw means: the drilled hole is ... read more

    Dec 12,2020 News
  • Processing technology of high-strength anti-theft screw

    Processing technology of high-strength anti-theft screw

    In addition to the cold heading process, the manufacturing processes of high-strength anti-theft screws include warm forging, cold extrusion and cutting. The high-strength cold heading screw production process of wind power anti-theft screws is: spheroidizing annealing→cold drawing→cold heading form... read more

    Dec 03,2020 News
  • What is the performance of non-standard screw fasteners for automobiles?

    What is the performance of non-standard screw fasteners for automobiles?

    Fasteners, as the connection between the host and parts, are tested in various harsh service environments along with the host. They are used in high temperature, high pressure, low temperature, vibration, corrosion, heavy load, alternating stress, shear and torsion resistance Various occasions. The ... read more

    Nov 30,2020 News
  • What are the grades of high-strength fasteners?

    What are the grades of high-strength fasteners?

    High-strength threaded fasteners are generally divided into four levels, 8.8, 9.8, 10.9 and 12.9, and are generally quenched and tempered medium carbon steel or medium carbon alloy steel. In order to eliminate the annealing and quenching and tempering process in the production process, high-strength... read more

    Nov 19,2020 News
  • What are the factors that affect the calculation of fastener flexibility coefficient?

    What are the factors that affect the calculation of fastener flexibility coefficient?

    The main factors affecting the calculation of the flexibility coefficient of fasteners such as pressure riveting screws are: the geometric size of the fastener, the stiffness of the fastener material, the geometric size of the base and the strip, and the stiffness of the base and the strip material.... read more

    Nov 12,2020 News