McMaster-Carr logo
    Filter by
    Grease Fitting Style
    Thread Length
    Hex Size
    Attribute Image
    Pipe Size
    Industrial Info Snippet
    Check Valve Type
    Shank Type
    For Use With
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Slot Length
    Installation Clearance
    Overall Width
    Width
    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

    Grease Fittings

    Thread these fittings into motors, bearings, engine blocks, and other machinery to create a lubrication point. They’re also known as hydraulic grease fittings.
    Straight with Male Thread
    Image of Product. Front orientation. Grease Fittings. Grease Fittings, Straight, Male.
    UNF Thread—UNF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.
    Zinc-Plated Steel—Zinc-plated steel fittings have mild corrosion resistance.
    Pkg.
    Material
    Overall
    Ht.
    Thread
    Lg.
    Shank
    Lg.
    Hex
    Size
    Max. Pressure,
    psi
    Check Valve
    Type
    Pkg.
    Qty.
    1-9
    10-Up
    10-32 UNF Thread
    Zinc-Plated Steel15/32"7/64"5/64"1/4"10,000Without Valve1000000000000000000
    Zinc-Plated Steel1/2"1/8"1/8"1/4"10,000Without Valve10000000000000000
     

    Grease Fitting Adapters

    When the size or thread type of a fitting doesn't match an existing opening, use these adapters to make the connection.
    Straight
    Image of Product. Front orientation. Grease Fitting Adapters. Straight.
    UN/UNF (SAE Straight) Thread—UN/UNF (SAE Straight) threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.
    360 Brass—360 brass adapters resist corrosion better than zinc-plated steel adapters.
    Connection
    Male
    Female
    Material
    Pkg.
    Qty.
    Pkg.
    UN/UNF (SAE Straight) 10-32NPT 1/8360 Brass500000000000000
     

    Flush-Style Grease Fittings

    Image of Product. Front orientation. Grease Fittings. Flush-Style Grease Fittings, Straight, Male, Style A.

    Straight

    Male

    Style A

    The nipple doesn't stick out, so these fittings fit in tight spaces and won't be damaged if something knocks into them. An integral check valve prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.
    Straight with Male Thread
    Image of Product. Front orientation. Grease Fittings. Flush-Style Grease Fittings, Straight, Male, Style A.

    Style A

    UNF Thread—UNF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.
    Style A—Install Styles A, B, and D with a slotted screwdriver.
    Zinc-Plated Steel—Zinc-plated steel fittings have mild corrosion resistance.
    Pkg.
    Style
    Material
    Overall
    Ht.
    Thread
    Lg.
    Shank
    Lg.
    Slot
    Lg.
    Max. Pressure,
    psi
    Check Valve
    Type
    Pkg.
    Qty.
    1-9
    10-Up
    10-32 UNF Thread
    AZinc-Plated Steel23/64"3/16"7/32"1/4"8,000Ball50000000000000000000
     

    Oil Fittings

    Note: Fittings do not hold oil; any oil dispensed into the fittings passes into the part to be lubricated.
    90° Elbow with Self-Closing Hinged Cover
    Image of Product. Front orientation. Contains Annotated. Oil Fittings. Oil Fittings, Self-Closing Hinged Cover, 90° Elbow.
    Image of Attribute. Back orientation. Contains Annotated. Oil Fittings, Self-Closing Hinged Cover, 90° Elbow.
    Fittings with a self-closing hinged cover block contaminants from entering equipment.
    UNF Thread—UNF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.
    Zinc—Zinc alloy fittings have mild corrosion resistance.
    Each
    Material
    Overall
    Ht.
    Shank
    Lg.
    Thread
    Lg.
    Installation
    Clearance
    1-9
    10-Up
    10-32 Male UNF Thread
    Zinc19/32"5/32"5/32"1 1/16"0000000000000000000
     
    Straight with Self-Closing Hinged Cover
    Image of Product. Male. Front orientation. Contains Annotated. Oil Fittings. Oil Fittings, Straight, Self-Closing Hinged Cover.
    Image of Attribute. Top orientation. Contains Annotated. Oil Fittings, Straight, Self-Closing Hinged Cover.

    Male

    Fittings with a self-closing hinged cover block contaminants from entering equipment.
    UNF Thread—UNF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.
    Zinc-Plated Steel—Zinc-plated steel fittings have mild corrosion resistance.
    Each
    Material
    Overall
    Ht.
    Shank
    Lg.
    Thread
    Lg.
    Installation
    Clearance
    1-9
    10-Up
    10-32 Male UNF Thread
    Zinc-Plated Steel9/16"3/16"3/16"3/4"0000000000000000000
     
    back to top