A threaded pipe fitting is one where the pipe is threaded into a recessed area of the fitting. To make a threaded fitting, a threaded connection is cut into the pipe and the fitting.  Typically, the male end of the thread is attributed to the pipe and the female end is the fitting. An exception to this is a street elbow which has both a male and female connection.  To read more about threaded fittings, click here to be taken to the main article for threaded fittings. 

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Threaded Fitting Sizes - 1/4" through 4"
	Bushing - Flush, ANSI, FCS (in) Bushing - Hexagon, ANSI, FCS (in)		Street Elbow, ANSI Class 3000, FCS (in) Street Elbow, ANSI Class 6000, FCS (in)
	Cap - Round, ANSI Class 3000, FCS (in) Cap - Round, ANSI Class 6000, FCS (in)		Lateral - ANSI Class 3000, FCS (in) Lateral - ANSI Class 6000, FCS (in)
	Coupling - Full, ANSI Class 3000, FCS (in) Coupling - Full, ANSI Class 6000, FCS (in)		Plug - Hexagon Head, ANSI, FCS (in) Plug - Round Head, ANSI, FCS (in) Plug - Square Head, ANSI, FCS (in)
	Coupling - Half, ANSI Class 3000, FCS (in) Coupling - Half, ANSI Class 6000, FCS (in)		Reducer - ANSI Class 3000, FCS (in) Reducer - ANSI Class 6000, FCS (in)
	Cross - Straight, ANSI Class 2000, FCS (in) Cross - Straight, ANSI Class 3000, FCS (in) Cross - Straight, ANSI Class 6000, FCS (in)		Swage, Concentric/Eccentric, ANSI, FCS (in)
	Elbow - 45 Degree, ANSI Class 2000, FCS (in) Elbow - 45 Degree, ANSI Class 3000, FCS (in) Elbow - 45 Degree, ANSI Class 6000, FCS (in)		Tee - Straight, ANSI Class 2000, FCS (in) Tee - Straight, ANSI Class 3000, FCS (in) Tee - Straight, ANSI Class 6000, FCS (in)
	Elbow - 90 Degree, ANSI Class 2000, FCS (in) Elbow - 90 Degree, ANSI Class 3000, FCS (in) Elbow - 90 Degree, ANSI Class 6000, FCS (in)		Union - ANSI Class 3000, FCS (in) Union - ANSI Class 6000, FCS (in)