Bolts un-covered Practical classics

[TheArf]

Just a bit of info, I remember recently someone asking about bolt and thread sizes and how to know which to use for which application. Well in practical classics this month they cover the ins and out of bolts, bolt grades, when to use bolt and not setscrews etc. There is also a section on how to make break pipes as well.
This is in the magazine dated as the spring issue.

hope this may be of use to some

Arfon