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1187C104012
M 4-0.7 x 12 Ind Hex Head SEMS Screw, With External Lock Washer Class 4.8 Steel/Zinc JIS B 1187 C

  • JIS B 1187 C External Lock Washer Pre-Assembled
  • Pre-assembled screws with one free spinning captive washer.
  • Low cost and widely available.
  • Increases productivity by eliminating hand assembly of individual components.
  • Permanent assembly assures that the washer is not dropped, lost or forgotten.
  • Ease of use with hand drivers and in automated production programs.
Product Specifications
Diameter M 4
Thread Pitch 0.7
Length 12mm
Head Wd. 7.0mm
Head Ht. 2.75mm
Washer Dia. 8.0mm
Thread Len. Full Thread