Fan

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. ThreadLengthDriveHeadMaterialFinish
General
Size (Type B) Thread Code Hole Diameter Length Code L Length
M3.9x1.2 M3.9 3.34 10.5 10.7/10.3
12 12.5/11.5
M4.2x1.4 M4.2 3.50 10.5 10.7/10.3
12 12.5/11.5
M4.9x1.6 M4.9 4.20 10.5 10.7/10.3
12 12.5/11.5
Truss Head
Size (Type B) D Head Diameter H Head Diameter Drive
Cross Recess Six - Lobe Recess
Size Size T Min.
M3.9x1.2 7.10/6.80 1.5 2 T15 0.95
7.10/6.80 1.5 2 T15 0.95
M4.2x1.4 7.40/7.10 1.7 2 T15 1.05
7.40/7.10 1.7 2 T15 1.05
M4.9x1.6 8.10/7.80 2.0 2 T20 1.27
8.10/7.80 2.0 2 T20 1.27
Flat Head
Size (Type B) D Head Diameter H Head Height Max (REF) Drive
Cross Recess Six - Lobe Recess
Size Size
M3.9x1.2 5.65/5.35 1.12 2 T8
5.65/5.35 1.12 2 T8
M4.2x1.4 6.10/5.80 1.12 2 T8
6.10/5.80 1.12 2 T8
M4.9x1.6 6.65/6.35 1.18 2 T10
6.65/6.35 1.18 2 T10