Fan Screws

Features

  • Ideal for mounting fans to chasses 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.
  • Variety of thread sizes, lengths and head styles available.

Materials and Finishes

  • Heat treated carbon steel with attractive bright nickel finish.
  • Other materials and/or finishes available by request.

3D drawings available upon request

Part Desc.ThreadLengthDriveHeadMaterialFinish
General
Size (Type B)Thread CodeHole DiameterLength CodeL Length
M3.9x1.2M3.93.3410.510.3-10.7
1211.5-12.5
M4.2x1.4M4.23.5010.510.3-10.7
1211.5-12.5
M4.9x1.6M4.94.2010.510.3-10.7
1211.5-12.5
  1. Optimum hole size may vary depending on materials joined. PENCOM recommends testing in the application to determine hole size and tightening requirements. Contact an Account Representative for samples.
  2. Custom sizes available by request.
Truss Head
Size (Type B)D Head DiameterH Head DiameterDrive
Cross RecessSix - Lobe Recess
SizeSizeT Min.
M3.9x1.26.80-7.101.52T150.95
6.80-7.101.52T150.95
M4.2x1.47.10-7.401.72T151.05
7.10-7.401.72T151.05
M4.9x1.67.80-8.102.02T201.27
7.80-8.102.02T201.27
Flat Head
Size (Type B)D Head DiameterH Head Height Max (REF)Drive
Cross RecessSix - Lobe Recess
SizeSize
M3.9x1.25.35-5.651.122T8
5.35-5.651.122T8
M4.2x1.45.80-6.101.122T8
5.80-6.101.122T8
M4.9x1.66.35-6.651.182T10
6.35-6.651.182T10