Product  catalogue



Technical data

 Across the flats dimensions of hex headed bolts  html-icon-50.png
 BSCY thread data  pdf.gif
 Torque wrench settings for British Standard bolts  pdf.gif
 Screw gauge conversions  html-icon-50.png
 Metric alternatives to wire and letter drills  pdf.gif
 How to identify threads  pdf.gif 
 tpi / pitch conversion  pdf.gif
 Thread charts  pdf.gif
 Calculate tapping drill size  html-icon-50.png  
 Schrader tyre valve data  html-icon-50.png 
 Pilot hole sizes for wood and self tapping screws  pdf.gif


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