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    92 Products
    About Pipe and Fittings
    industrial info icon

    Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

    Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

    To prevent leaks in low-pressure lines, the male threads on these fittings have an acrylic sealant already applied for extra protection. Also known as Pressure Class 125 or 150 fittings. Made of either iron or steel, they’re best in noncorrosive environments. Even with sealant, threaded connections can be taken apart for maintenance and repair.
    Hex-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant, Hex-Drive Plugs, Male, Threaded Fitting Connection.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPT Male
    1/8
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N3200000
    1/4
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N330000
    3/8
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N340000
    1/2
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N350000
    3/4
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N360000
    1
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N370000
     
    Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant, Square-Drive Plugs, Male, Threaded Fitting Connection.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPT Male
    1/2
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N4200000
    3/4
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N430000
    1
    		Solid150
    		Steel150 psi @ 72° FNot Rated5245N440000
     
    External-Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant, External-Square-Drive Plugs, Male, Threaded Fitting Connection.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPT Male
    1/8
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N2600000
    1/4
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N220000
    3/8
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N230000
    1/2
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N240000
    3/4
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N250000
    1
    		Solid150
    		SquareSteel150 psi @ 72° FNot Rated5245N270000
     

    Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

    The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.
    Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, Hex-Drive Plugs, Male, Threaded Fitting Connection.

    Male

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Male
    1/8
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K51100000
    1/4
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5120000
    3/8
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5130000
    1/2
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5140000
    3/4
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5150000
    1
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5160000
    1 1/4
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K5170000
    1 1/2
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K51800000
    2
    		150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K51900000
     
    Square-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, Square-Drive Plugs, Male, Threaded Fitting Connection.

    Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Male
    1/8
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K71400000
    1/4
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7150000
    3/8
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7160000
    1/2
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7170000
    3/4
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7180000
    1
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7190000
    1 1/4
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K7210000
    1 1/2
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K72200000
    2
    		Solid150
    		Galvanized Steel150 psi @ 72° F150 psi @ 350° F4638K72300000
     
    External-Square-Drive Plugs
    Image of Product. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, External-Square-Drive Plugs, Male, Threaded Fitting Connection.

    Threaded

    Fitting

    Connection, Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Male
    1/8
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K82100000
    1/4
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K8220000
    3/8
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K8230000
    1/2
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K8240000
    3/4
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K8250000
    1
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K8340000
    1 1/4
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K83500000
    1 1/2
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K83600000
    2
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° F150 psi @ 350° F4638K83700000
     
    180° Bend Connectors
    Image of Product. Front orientation. Pipe Traps. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings.
    180° bend connectors are also known as U-bends.
    Pipe
    Size
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Shape
    Each
    NPT Female
    3/4
    		Galvanized Iron150 psi @ 72° F150 psi @ 350° FUL Listed
    		180° Bend4638K299000000
    1
    		Galvanized Iron150 psi @ 72° F150 psi @ 350° FUL Listed
    		180° Bend4638K38500000
    1 1/2
    		Galvanized Iron150 psi @ 72° F150 psi @ 350° FUL Listed
    		180° Bend4638K556000000
    2
    		Galvanized Iron150 psi @ 72° F150 psi @ 350° FUL Listed
    		180° Bend4638K557000000
     
    Locknuts
    Image of Product. Front orientation. Pipe Locknuts.
    NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    Pipe
    Size
    Finished
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPSL Female
    1/4
    		Galvanized IronNot RatedNot Rated4638K61200000
    3/8
    		Galvanized IronNot RatedNot Rated4638K6130000
    1/2
    		Galvanized IronNot RatedNot Rated4638K6140000
    3/4
    		Galvanized IronNot RatedNot Rated4638K6150000
    1
    		Galvanized IronNot RatedNot Rated4638K61600000
    1 1/4
    		Galvanized IronNot RatedNot Rated4638K61700000
    1 1/2
    		Galvanized IronNot RatedNot Rated4638K61800000
    2
    		Galvanized IronNot RatedNot Rated4638K61900000
     

    Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant

    The male threads on these fittings have a sealant applied for extra leak protection. Fittings are made of galvanized iron or steel, which have fair corrosion resistance. Also known as Pressure Class 125 or 150 fittings, they are for use in low-pressure applications.
    Hex-Drive Plugs
    Image of Product. NPTF Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant, Hex-Drive Plugs, Threaded Fitting Connection, Male.

    NPTF Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPTF Male
    1/16
    		150
    		Galvanized SteelNot RatedNot Rated1162T6400000
    1/8
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T370000
    1/4
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T380000
    3/8
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T390000
    1/2
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T410000
    3/4
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T420000
    1
    		150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T430000
     
    Square-Drive Plugs
    Image of Product. NPTF Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant, Square-Drive Plugs, Threaded Fitting Connection, Male.

    NPTF Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPTF Male
    1/8
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T4400000
    1/4
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T450000
    3/8
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T460000
    1/2
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T470000
    3/4
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T480000
    1
    		Solid150
    		Galvanized Steel150 psi @ 72° FNot Rated1162T490000
     
    External-Hex-Drive Plugs
    Image of Product. NPTF Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant, External-Hex-Drive Plugs, Threaded Fitting Connection, Male, Hex Body.

    NPTF Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPTF Male
    1/8
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T5700000
    1/4
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T580000
    3/8
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T590000
    1/2
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T610000
    3/4
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T620000
    1
    		Solid150
    		HexGalvanized SteelNot RatedNot Rated1162T630000
     
    External-Square-Drive Plugs
    Image of Product. NPTF Male. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant, External-Square-Drive Plugs, Threaded Fitting Connection, Male, Square Body.

    NPTF Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPTF Male
    1/8
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T3100000
    1/4
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T320000
    3/8
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T330000
    1/2
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T340000
    3/4
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T350000
    1
    		Solid150
    		SquareGalvanized Steel150 psi @ 72° FNot Rated1162T360000
     

    Low-Pressure Iron and Steel Threaded Pipe Fittings

    Use these fittings for low-pressure applications in noncorrosive environments.
    External-Square-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Fittings, External-Square-Drive Plugs, Male, Threaded Fitting Connection, Square Body.

    Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPT Male
    1/8
    		SolidNot RatedSquareSteelNot RatedNot Rated44605K92100000
     
    Locknuts
    Image of Product. Front orientation. Pipe Locknuts.
    NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    Pipe
    Size
    Finished
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    NPSL Female
    1/8
    		SteelNot RatedNot Rated44605K43300000
     

    High-Pressure Brass and Bronze Threaded Pipe Fittings

    High pressures are no problem for these heavy-duty fittings. They are brass for good corrosion resistance.
    Slotted-Drive Plugs with Gasket
    Image of Product. Male. Front orientation. Pipe and Fittings. High-Pressure Brass and Bronze Threaded Pipe Fittings, Slotted-Drive Plugs with Gasket, Threaded Fitting Connection, Male, Hex Body.

    Male

    Thread
    Size
    Construction
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Gasket
    Material
    Each
    Metric Male
    M5 × 0.8 mmHollowHexBrass1,000 psi @ 72° FNylon
    		50785K82400000
     
    External-Hex-Drive Plugs with Gasket
    Image of Product. Male. Front orientation. Pipe and Fittings. High-Pressure Brass and Bronze Threaded Pipe Fittings, External-Hex-Drive Plugs with Gasket, Threaded Fitting Connection, Male, Hex Body.

    Male

    Pipe
    Size
    Construction
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Gasket
    Material
    Each
    BSPP Male
    1/8
    		SolidHexBrass1,000 psi @ 72° FNylon
    		50785K81200000
    1/4
    		HollowHexBrass1,000 psi @ 72° FNylon
    		50785K8130000
    3/8
    		HollowHexBrass1,000 psi @ 72° FNylon
    		50785K82300000
    1/2
    		HollowHexBrass1,000 psi @ 72° FNylon
    		50785K82600000
     
    External-Square-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. High-Pressure Brass and Bronze Threaded Pipe Fittings, External-Square-Drive Plugs, Threaded Fitting Connection, Male, Square Body.

    Male

    Pipe
    Size
    Construction
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Each
    BSPT Male
    1/8
    		HollowSquareBrass1,000 psi @ 72° F50785K79800000
    1/4
    		HollowSquareBrass1,000 psi @ 72° F50785K800000
    3/8
    		HollowSquareBrass1,000 psi @ 72° F50785K80300000
    3/4
    		HollowSquareBrass1,000 psi @ 72° F50785K80600000
     

    Premium Low-Pressure Stainless Steel Threaded Pipe Fittings

    Unlike other stainless steel fittings, these are cast in the U.S. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition. All fittings except plugs adhere to ANSI/MSS SP-114 standards for heat treating, material thickness, and marking. It’s the highest quality standard for Pressure Class 150 low-pressure stainless steel fittings. They also meet either ASTM A351 or A479 requirements for parts that will be used in pressure systems. These stainless steel fittings are more corrosion resistant than steel fittings, and almost as strong.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    External-Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Premium Low-Pressure Stainless Steel Threaded Pipe Fittings, External-Hex-Drive Plugs, Male, Threaded Fitting Connection, Hex Body.

    Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    316 Stainless Steel
    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPTF Male
    1/4
    		Solid150
    		Hex270 psi @ 72° F150 psi @ 350° F5288N3600000
    3/8
    		Solid150
    		Hex270 psi @ 72° F150 psi @ 350° F5288N370000
     
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