A Brass bolt is a form of threaded fastener with an external male thread made from Brass. Bolts are generally used as connectors with applications in various mechanical and electrical industries.

Bolts use a wide variety of head designs, as do screws. These are designed to engage with the tool used to tighten them. Some bolt heads instead lock the bolt in place, so that it does not move and a tool is only needed for the nut end.

Earlier bolt had square heads, made by forging. Although much more common today is the hexagonal head. These are fixed in place and twisted tightly by a spanner or wrench, of which there are many forms.

Hex Bolts	Lag Bolts
Carriage Bolts	Connector Bolts
Toilet Bolts	Door Bolts