Weldtutor thanks for the info, seems bcbearing never herd of 2 start but are track some for me ans cbs ,s web site is done for repairs, but i did find out that roton ships to canada, they have every kind of screw you can imagine so thats cool, little more than mcmasters but thats ok by me. $7.31 per foot for 1/2 8 tpi 2 start plus they sell taps to make my own lead nuts so cool. Thanks again for your help. graham |