Electrical connector

An electrical connector for connecting two leads together, comprising:

• a housing having a cylindrical opening formed therethrough,
• electrical insulating cylindrical means located in said opening,
• said electrical insulating cylindrical means being separate from said housing and removable from said opening,
• said electrical insulating cylindrical means having an opening formed therethrough,
• a metallic cylinder located in the opening of said insulating cylindrical means and having threads formed in its inside wall at opposite ends thereof,
• said metallic cylinder having an opening formed therethrough and having two contacts received through its opposite ends, each contact adapted to have an electrical lead connected thereto,
• said two contacts having shoulders extending outwardly therefrom,
• two holding means adapted to be fitted around said contacts and having threads formed on their outer surfaces and adapted to be threaded into opposite ends of said metallic cylinder for applying a holding force to said shoulders of said contacts for holding said contacts in said metallic cylinder,
• said housing having threads formed on its outer surface at opposite ends thereof, and
• two cup-shaped end caps, each having an inside cylindrical wall with threads formed therein, a first end with a large opening, and a rear wall at an opposite end with a small opening formed therethrough,
• said small opening of each end cap having a diameter less than the outside diameter of the ends of said housing and of a size sufficient to receive one of said leads,
• the size of said large opening of each end cap being sufficient to allow each end cap to be fitted around and threaded to one end of said housing.