Speaking of screw sizes... Since we sell our products internationally, I've been suggesting moving away from US hardware and towards metric. So far no one agrees. We really do get stuck on measurement systems. When I was a kid, my father gave me a job at his company. My first job was sorting screws that had gotten mixed together. He said "I have engineers that don't know screw sizes." He wanted to make sure I wasn't one of them. But, I still don't know metric screw sizes. Speaking of measurements, how many are designing circuit boards using mm, and how many using mils (thousanths of inch)? Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! Not sent from an iPhone. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .