Fan Screws

Features

  • Ideal for mounting fans to chassis or finger guards to fans.
  • Hardened screws form threads in mild steel, aluminum and hard plastics.
  • Reduced-diameter point aligns multiple surfaces to be fastened.
  • Choices of screw thread, length, head style and drive.
  • Material and finish compliant with Restriction of Hazardous Substances (RoHS) Directive 2002/95/EC.
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Part Desc.Thread CodeLength CodeDriveHead CodeMaterialFinish
General
Size (Type B)Thread CodeHole DiameterLength CodeL Length
M3.9x1.2M3.93.3410.510.7/10.3
1212.5/11.5
M4.2x1.4M4.23.5010.510.7/10.3
1212.5/11.5
M4.9x1.6M4.94.2010.510.7/10.3
1212.5/11.5
Truss Head
Size (Type B)D Head DiameterH Head DiameterDrive
Cross RecessSix - Lobe Recess
SizeSizeT Min.
M3.9x1.27.10/6.801.52T150.95
7.10/6.801.52T150.95
M4.2x1.47.40/7.101.72T151.05
7.40/7.101.72T151.05
M4.9x1.68.10/7.802.02T201.27
8.10/7.802.02T201.27
Flat Head
Size (Type B)D Head DiameterH Head Height Max (REF)Drive
Cross RecessSix - Lobe Recess
SizeSize
M3.9x1.25.65/5.351.122T8
5.65/5.351.122T8
M4.2x1.46.10/5.801.122T8
6.10/5.801.122T8
M4.9x1.66.65/6.351.182T10
6.65/6.351.182T10