Tube Products Incorporate manufactures Stub Ends with Long and Short Pattern Necks. Tube Products Incorporate is an ISO 9001:2008 certified company. The company also manufactures and supplies carbon steel, stainless steel and alloy steel pipe fittings, flanges, piping spools and bulk pipes and plates. The Stub Ends with Long and Short Pattern Necks are made of stainless steel. The Stub Ends with Long and Short Pattern Necks have high strength. These Stub Ends are available in cold forming sizes ranging from 2" NB to 24" NB.