A brief discription and explaination of how to tell a Metric bolt from an SAE inch bolt.
Music: Singing In The Rain (Instrumental) by David Mumford. CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
Tek screws and other types of self-drilling fasteners have revolutionised how we construct houses and sheds, plus a range of farm structures and equipment.