very basic question on machine screw size

[old_picker]

what is the outside diam of a #8-32 imperial machine screw?

[Stustoys]

Depends on the thread class but somewhere between .1640 and .1571
Stuart

[Luke Shield]

Stuart is right, it should be .1640.

old_picker if you want to PM me your address I will post you out an A3 wall chart which has almost every fastener size known to man. It's very handy to hang on the wall in your workshop. :)

[old_picker]

thanks luke
pm sent