5-WAY® Binding Posts have positive-stop captive thumbnuts that allow space to make connections yet reduce the likelihood of accidentally contacting current carrying parts. They are available in red, white, blue, yellow, black and green. All others have nylon plastic per MIL-P20693A, Type IV. Current carrying parts are gold, nickel or tin plated brass for improved conductivity and corrosion resistance. Metal parts are recessed for user and instrument protection and none touch the mounting panel. All are available in single packs or 100-quantity bulk packs.