M&P carries NPT threaded plugs to protect Nominal pipe internal threads. These plugs will protect your product during shipping and storage until needed for use.

NPT Threaded Plugs Description:

  • Used to protect NPT threads on the inside.
  • Square Head Design.
  • Made from High-Density Polyethylene.
  • BLUE in color

National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings. In contrast to straight threads that are found on a bolt, a taper thread will pull tight and therefore make a fluid-tight seal.  NPT is defined by ANSI/ASME standard B1.20.1. Pipe threads are different from machine-screw and bolt threads. The biggest difference is the taper on pipe threads. Nominal Pipe Size (NPS) is loosely related to the inside diameter of Schedule 40 pipe.

See Size Chart for sizes of Threaded Plugs available.

See also NPT Push-In Non-Threaded Plugs to protect the Inner Diameter.

NPT Threaded Plugs

M&P carries NPT threaded plugs to protect Nominal pipe internal threads. These plugs will protect your product during shipping and storage until needed for use.

NPT Threaded Plugs Description:

  • Used to protect NPT threads on the inside.
  • Square Head Design.
  • Made from High-Density Polyethylene.
  • BLUE in color

National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings. In contrast to straight threads that are found on a bolt, a taper thread will pull tight and therefore make a fluid-tight seal.  NPT is defined by ANSI/ASME standard B1.20.1. Pipe threads are different from machine-screw and bolt threads. The biggest difference is the taper on pipe threads. Nominal Pipe Size (NPS) is loosely related to the inside diameter of Schedule 40 pipe.

See Size Chart for sizes of Threaded Plugs available.

See also NPT Push-In Non-Threaded Plugs to protect the Inner Diameter.