Panel and Enclosure Standoffs and Spacers: Type - Male/Female Threaded Standoff; Shape - Hex; Length - Spacer - 0.600" (15.24 mm); Spacer Diameter - 0.250" (6.35 mm); Material - Brass; Color-Finish - Nickel Plate; End A - Female 4-40; End B - Male 4-40; Length - Female Thread - 0.250" (6.35 mm); Length - Male Thread - 0.187" (4.70 mm); Material Specification - ASTM-B16