Screwing around (Was: Multimeter recomendations

:-). I harv, of course. cut plenty of threads... Male threads can generally be cut on lathe if you dont have the right size die (even if you do, it's good practice to cut them to most of the depth on the lathe and finish them with the die). Female threads can also be cut on a lathe but only if they're over about 10mm. Below that you can't fit the cutting tool into the hole. Nuts of all shapes and sizes are easy enough to make (although even I don't make things that standard M3 nuts myself.). Cutting the threads on bolts is also quite easy, the problem is making the head. Hexagon heads (of any size) are not hard, nor are slotted heads for a normal screwriver.But making Allen socket heads, Torx heads or Phillips/Pozidriv heads really neads a suitable punch and a press. A web search should find soemthing. I know a company who claims they can get LH taps and Dies for, IIRC, 3* the price of the corresponding RH one. In generaly you buy these individually, in the sizes you need. Evil ! -tony