Laverda
Cast Iron
- Joined
- Mar 24, 2014
- Location
- Riverside County, CA
This is a problem I have not seen before. I am working on a air compressor made in Germany. I need to replace some 5 mm x .8 pitch screws. I have a number of USA made 5 mm screws and they won't go in the hole. Measuring them, the German screws are 4.70mm on the major diameter and 4.37 mm on the minor diameter. The USA and even asian made ones are`4.83 mm major and 4.46 mm minor. So either I have to re-tap all the holes which are in cast iron or find some smaller screws. My 5 mm tap measures 4.99 mm and it won't go in the holes without starting to cut some metal.
And yes the screw pitch is .8 not .5 pitch.
What is the correct dimension for a 5 mm screw?
And yes the screw pitch is .8 not .5 pitch.
What is the correct dimension for a 5 mm screw?