Bus Bar – 24 Way/150A with 2 Input StudsThese bus bars have tin-plated, brass-insulated mounting bases with recessed mounting holes to avoid accidental shorts on aluminum surfaces.Now with easy-fit covers to ABYC standards with polarity ID5/32″ (4 mm) stainless steel screws with shakeproof washers0 x 1/4″ (6 mm) input studsSupplied standard with all BEP AC and DC control panelsDisplay pack versions supplied with coverWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.