Marathon Heater [India] Pvt. Ltd. Supplies Heaters with Post Terminals. Marathon Heater [India] Pvt. Ltd. Manufactures Temperature Sensors, High Quality Heaters etc. The Heaters with Post Terminals also called screw terminals or stud terminals are used in applications where easy lead replacement is desirable. The Heaters with Post Terminals work great with ring terminals or fork terminals. Post terminals are only available for heaters ½"inches diameter and up. The Heaters with Post Terminals are supplied with 2 stainless steel washers and 2 stainless steel nuts on each stud.