Patents Assigned to YIH SHWEI BOLT INDUSTRIAL CO., LTD.
  • SCREW
    Publication number: 20130022426
    Abstract: A screw includes a head and a shank combined together. The head is formed with a circumference provided thereon with continuously arranged point-shaped ribs. When the circumference of the head is being locked into a wood piece, the ribs will function to carry out excavating to enable the screw to be locked into the wood piece comparatively easily.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Applicant: YIH SHWEI BOLT INDUSTRIAL CO., LTD.
    Inventor: KENG SHUI WU