Tech Data

This section contains links to lists, tables and other information that you may find useful.

Additional lists of data and updates will be added as they become available.


Clout Head Nail Quantities

These three tables give the approximate number of non ferrous clout head nails per 1kg for all of the available sizes, plus the corresponding nail grip resistance values.

Wind speed conversion tables

The conversion of the common wind speed unit types from 1:100.

Natural slate sizes

These four tables list all the standard Imperial and Metric slate sizes that have been produced and sold in the UK.