The 4mm safety banana jack (socket) accepts sheathed or shrouded banana plugs and meets the latest international safety standard IEC 61010-031 to 1,000 V CAT III. Round panel nut allows for compact placement and assembly. Termination is with 0.25" Faston terminal for quick assembly. Body made of polyamide (nylon); brass/nickel plated jack and nut. Body thread: M12 x 0.75mm. Maximum panel thickness: 0.40". Use assembly wrench tool set. IEC rating: 1,000 V CAT III / 600 V CAT IV. Current max: 36 A. Resistance max: <12 mohm. Temperature: -20 degree to +80 degree C. RoHS (2002/95/EC) compliant. Yellow color.