Nomenclature for Screws

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This is a historic page with suggestions from that time. It needs to be reworked to document the status of today (2018).


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A suggestion by --Mikeheide 09:56, 10 July 2011 (EDT)

Nomenclature: Screw length_(LDu) x thread_diameter_(LDu) {head type} {slot type}

At present we have the following {head type}s:

  • Countersunk
  • Pan
  • Flat
  • Beveled

Screw length is measured from the flat underside of the head, except for Countersunk when it is measured from the flat top surface.

At present we have the following {slot type}s:

  • Slotted
  • Cruciform
  • Triangular

Examples

u9000.dat - ~Screw 44.5 x  5 Countersunk Slotted
u9013.dat - ~Screw 12 x  6 Pan Cruciform
u9021.dat - ~Screw  6 x  5 Flat Slotted
u9022.dat - ~Screw  4 x  4 Beveled Triangular