Torx is a reg. trade mark of Textron Inc. www.textron.com Us company. no sign of metric design. However sizes are given for metric and inch sizes. The T## designation doesn;t seam to represent anything wether in inch or metric. All screw heads are based on ANSI B sizes not on ISO sizes. These sites show the dimensional data: http://www.camcar.textron.com/torxplus/specindex.html http://www.camcar.textron.com/PDFS/torx.pdf ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup
