Vent copper bolts are a type of specialty fastener that provide the inherent benefits of copper, as well as an essential part of pressure equalization while in a sealed system. Copper is an ideal material for bolts used in applications that face extreme conditions and need durability, performance and corrosion resistant properties due to its proven thermal electrical conductivity, biostatic, antibacterial capability with no or minimal long-term toxicity. The vent copper bolt has a small hole or channel that allows any trapped gases and pressure to escape, preventing damage to the system caused by pressure differentials due to temperature changes or variations in altitude. Using them is especially beneficial in vacuum systems because the confined spaces of gas trapped inside blind-tapped holes can create what are called virtual leaks and pressure differences between one region to another.