3916757

Information

• Patent Grant
• 3916757

• References
• Source

• Patent Number

  3,916,757

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • F16B25/0031 - the screw being designed to be screwed into different materials
  • F16B25/0089 - the screw having wings
  • F16B25/103 - by means of a drilling screw-point
  • F16B35/041 - Specially-shaped shafts
  • F16B25/10 - Screws performing an additional function to thread-forming
  • Y10T408/906 - Axially spaced

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 408 - Cutting by use of rotating axially moving tool