McMaster-Carr logo
    Filter by
    Attachment Type
    System of Measurement
    OD
    Attribute Image
    For Use With
    Material
    For Hole Type
    Shape
    Inside Height
    Attribute Image
    Compatible Connection
    Color
    Thread Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Temperature
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Height
    Flexibility
    Construction
    Flange Diameter
    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)
    2 Products

    Screw-On Caps

    Image of Product. Front orientation. Protective Caps. Screw-On Caps, Polyethylene.

    Polyethylene

    Thread onto male pipe and fittings for the most secure fit. These caps keep dust, paint, and coatings out of threads and pipe. They also protect from damage during manufacturing, shipping, and storage.
    Polyethylene—These tough caps are hard and wear resistant to hold up against scrapes and gouges.
    Thread
    Size
    Type
    For
    OD
    Inside
    Ht.
    Flexibility
    Max. Temp.,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    Polyethylene
     
    For Straight-Thread Fittings
    3"-12
    		UN
    		3"1 5/32"Rigid150Red101277K133000000
     

    Hollow Tapered Plugs

    Image of Product. Front orientation. Contains Annotated. Protective Plugs. Hollow Tapered Plugs.
    A hollow construction makes these plugs extra flexible, so they compress for easy installation and a snug fit. The tapered profile fits a range of hole diameters. If you flip the plug over, it can be used as a cap.
    Polyethylene—Convenient and economical. Instead of cleaning and reusing, just toss and grab a new plug.
    For ID
    For Thread
    Size
    Ht.
    Max. Temp.,
    ° F
    Color
    Flange
    Dia.
    Pkg.
    Qty.
    Pkg.
    Polyethylene
    2.849" to 2.98"3"-12
    		3/4"150Red3 1/4"504491K22000000
     
    back to top