IIRC the standard thread pitches for numbered screw sizes are: 2-56 4-40 6-32 8-32 10-32 10-24 Any other pitch is going to be hard to find. -- Bob Ammerman RAm Systems --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .