Blue Sea Dual Power Post - One 516-18 and One 38-16 Studs The Blue Sea Dual Power Post provides a termination point for extending the length of outboard harnesses or other conductors. This power post is designed for outboard engine installation when factory cables need to be extended. Includes one black and one red insulator. Specifications Maximum Voltage 48V DC Mount 10 Screw M5 Stud Size 38-16, 516-18 Stud Torque 120-140 in-lb Weight 0.35 lbs. California Residents WARNING Cancer and Reproduct