A BOSS head made of zinc is a type of clamp commonly used in laboratory and workshop settings. BOSS heads are designed to secure glassware, tubing, or other items in place for a variety of applications.

The BOSS head consists of a metal screw that is threaded through a metal plate, creating a clamp. The plate has a hole in the center that can be adjusted to accommodate different sizes of glassware or tubing. The screw is tightened to secure the glassware or tubing in place, making it easy to connect or disconnect items as needed.

BOSS heads made of zinc are commonly used in laboratory setups to hold flasks, test tubes, and other glassware in place during experiments. They are also used in workshops and DIY projects to secure pipes, tubes, and other items in place.

Zinc is a durable, corrosion-resistant metal that is commonly used for laboratory equipment and tools. It is an affordable alternative to stainless steel and aluminum, making it a popular choice for many laboratory and workshop applications.

Overall, BOSS heads made of zinc are a versatile and convenient tool for holding glassware and other items in place in laboratory and workshop settings. They are durable, corrosion-resistant, and affordable, making them a popular choice for many applications.