MODRATEC Useful Data (otherwise known as MUD) is a series of pages containing helpful information particularly relevant to rail modellers. The tables on this page use our easy-to-compare format to show tapping drills suitable for UNF threads.

If no logo here, please click...®

Kostenlose Uhr fur die Seite clock for blog relojes web clock for blog relojes para web gratis clock for blog Our Twitter stream


Tapping Drill Sizes for UNF Threads

The following tables show the range of drill sizes suitable for tapping UNF (Unified National Fine) screw threads.

The first table gives general information about UNF threads - the thread angle, and, for each size, the nominal diameter and thread pitch.

Please also read the general comment on the Tapping Index page.

UNF table UNF tapping 1 UNF tapping 2 UNF tapping 3 UNF tapping 4 UNF tapping 5 UNF tapping 6 UNF tapping 7 UNF tapping 8 UNF tapping 9


For affordable and effective Web Hosting, MODRATEC uses and recommends Hosting Bay



Site Map

Useful Data
MUD Index

Tapping Index -

- BA



- Metric Coarse

- Metric Fine

- ME



Received the order this morning and I would like to thank you for the great service. (Rod)

© 2004-2013 MODRATEC, Australia. All rights reserved.