The 1 x 3/8 Steel Hex Nipple is a short pipe fitting with male threads on both ends, designed to connect pipes or fittings of different sizes. Its hexagonal body allows for easy tightening and loosening with a wrench. Typically made from steel, this nipple is ideal for applications that require strength and durability in connecting pipes of varying diameters. This fitting is ideal for a variety of applications, including plumbing, industrial systems, HVAC, and automotive uses.