McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Type
    Fitting Type
    Material
    Pipe Material
    Pipe Schedule
    Industrial Info Snippet
    Nut Type
    Maximum Pressure @ Temperature
    Pressure Rating
    Maximum Steam Pressure @ Temperature
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Specifications Met
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Pressure Class
    Industrial Info Snippet
    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)
    6 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 Plated Brass Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Plated Brass Threaded Pipe Locknuts.
    Used in low-pressure pipe lines, these brass locknuts have a plating that makes them shiny and improves corrosion resistance.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    Chrome-Plated Brass—Chrome-plated brass locknuts are shinier and withstand corrosion better than nickel-plated brass locknuts.
    For Pipe
    Pipe
    Size
    Hex
    Wd.
    Lg.
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    For Use With
    Pressure
    Class
    Material
    Schedule
    Material
    Specs.
    Met
    Each
    NPT Female
    1/8
    		7/8"1/4"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K181000000
    1/4
    		7/8"1/4"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K18200000
    3/8
    		1"9/32"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K18300000
    1/2
    		1 9/32"5/16"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K18400000
    3/4
    		1 1/2"9/32"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K18500000
    1
    		1 3/4"11/32"200 psi @ 72° F125 psi @ 400° FAir, Natural Gas, Oil, Steam, Water125
    		Chrome-Plated Brass40
    		BrassASTM B4569162K18600000
     
    back to top