Marathon Heater [India] Pvt. Ltd. Offers Heaters with Flanges. Marathon Heater [India] Pvt. Ltd. Manufactures Temperature Sensors, High Quality Heaters etc. The Heaters with Flanges can be welded on the lead end of the heater. Flanges can be used to hold a heater in place to prevent backing out during operation. Heaters with Flanges can also assist in heater removal. Flanges are available in 1/16" inches thick.