McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    41 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.

    Extreme-Pressure Iron and Steel Threaded Pipe Fittings

    The strongest steel fittings we offer, these can withstand extreme-pressure applications.
    Note: The maximum pressure listed for Class 6000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.
    Hex-Drive Plugs with Gasket
    Image of Product. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Hex-Drive Plugs with Gasket, Male, Threaded Fitting Connection.

    Threaded

    Fitting

    Connection,

    Male

    Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.
    Thread Size
    Material
    Max. Pressure
    @ Temp.
    Gasket
    Material
    Each
    Metric Male
    M10 × 1 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K92500000
    M12 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K9260000
    M14 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K9270000
    M16 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K9280000
    M18 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K9290000
    M20 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K93100000
    M22 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K93200000
    M24 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K93300000
    M26 × 1.5 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K93400000
    M27 × 2 mmZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K93500000
     
    External-Hex-Drive Plugs with Gasket
    Image of Product. Male. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, External-Hex-Drive Plugs with Gasket, Male, Threaded Fitting Connection, Hex Body.

    Male

    Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.
    Thread Size
    Construction
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Gasket
    Material
    Each
    Metric Male
    M10 × 1 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K67500000
    M12 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K8890000
    M14 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K8910000
    M16 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K8920000
    M18 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K8930000
    M20 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K89400000
    M22 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K89500000
    M24 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K89600000
    M26 × 1.5 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K89700000
    M30 × 2 mmSolidHexZinc-Plated Steel5,600 psi @ 72° FBuna-N
    		4936K89800000
     
    Replacement Washers
    Image of Product. Front orientation. Sealing Washers.
    For Thread
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Each
    For Metric Male
    M10
    		8.5615.8824936K64700000
    M12
    		9.73181.54936K6480000
    M14
    		11.38211.54936K6490000
    M16
    		13.41241.54936K6510000
    M18
    		14.76261.54936K6520000
    M20
    		16.76281.54936K6530000
    M22
    		18.743024936K6540000
    M24
    		20.113224936K6550000
    M26
    		24.1334.932.54936K6560000
    M27
    		23.23624936K6570000
    M30
    		25.73924936K6580000
     

    Extreme-Pressure Stainless Steel Threaded Pipe Fittings

    With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines.
    Hex-Drive Plugs with Gasket
    Image of Product. Male. Front orientation. Pipe and Fittings. Extreme-Pressure Stainless Steel Threaded Pipe Fittings, Hex-Drive Plugs with Gasket, Male, Threaded Fitting Connection.

    Male

    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.
    Fluoroelastomer—These gaskets resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol.
    316 Stainless Steel
    Thread Size
    Gasket
    Material
    Max. Pressure
    @ Temp.
    Each
    Metric Male
    M10 × 1 mmFluoroelastomer
    		5,800 psi @ 72° F4822T276000000
    M12 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T27700000
    M14 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T27800000
    M16 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T27900000
    M18 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28100000
    M20 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28200000
    M22 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28300000
    M26 × 1.5 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28400000
    M27 × 2 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28500000
    M33 × 2 mmFluoroelastomer
    		5,800 psi @ 72° F4822T28600000
     
    back to top