The BP21 series 5-WAY® Binding Post with miniature fluted nut. It has positive-stop captive thumbnuts that allow space to make connections yet reduce the likelihood of accidentally contacting current carrying parts. It is available in red, white, blue, yellow, black and green. 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. It is Underwriters Laboratories recognized component. Double Assembly 5-WAY® binding post is designed for faster, more accurate mounting on 3/4-inch centres. Conventional miniature, standard and larger stud types have panel insulating parts in black only. Thumbnuts are available in colour combinations of red and black, black and black and red and red. Plastic insulating parts have the same characteristics as single types. Metal parts are available in gold, nickel or tin plated brass parts.