McMaster-Carr logo
    Filter by
    System of Measurement
    Square Drive Size
    Attribute Image
    Drive Style
    Industrial Info Compare
    Length
    Socket Style
    Square Drive Gender
    Shank Type
    Tip Style
    Socket Retainer Style
    Hex Shank Size
    Material
    Number of Pieces
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Color
    Bit Replaceable
    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)
    35 Products

    Square Drive Size Adapters

    Image of Product. Front orientation. Socket Adapters. Square Drive Size Adapters.
    Convert from one square drive size to another. The female side of the adapter attaches to your wrench; the male side to your socket. These adapters have a finish that provides some corrosion resistance.
    Chrome-Plated Steel—Chrome-plated steel adapters have a mirror-like finish and are easy to clean.
    Square Drive Size (Gender)
    Overall
    Lg.
    Each
    Chrome-Plated Steel
    1/2" (Female) × 3/8" (Male)1 3/8"5523A54000000
     

    Continuous-Use Socket Extensions

    Image of Product. Front orientation. Socket Extensions. Continuous-Use Socket Extensions.
    First developed for aerospace and automotive assembly processes, these extensions will stand up to your high-volume production and assembly lines. They're hardened to resist wear yet have enough flex to withstand the high torque and force of impact tools without cracking. Use them to lengthen the reach of your impact socket.
    Overall
    Lg.
    Material
    Each
    3/8" Square Drive
    1 3/8"Steel7168N17000000
     

    Hex Shank to Square Drive Adapters

    Image of Product. Front orientation. Socket Adapters. Hex Shank to Square Drive Adapters.
    Turn sockets with a bit screwdriver.
    Hex Shank
    Size
    Overall
    Lg.
    Material
    Socket Retainer
    Style
    Each
     
    1/2" Square Drive
    5/16"1 3/8"SteelBall Detent8518N103000000
     

    Flex Socket Adapters

    Image of Product. Front orientation. Socket Adapters. Flex Socket Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Flex Socket Adapters.
    Convert your socket into a flex socket to access fasteners from an angle. Also known as universal joints.
    The finish on these adapters resists corrosion.
    Chrome-Plated Steel—Chrome-plated steel adapters have a mirror-like finish and are easy to clean.
    Black-Oxide Steel—Black-oxide steel adapters are easy to grip when dirty or wet. They need to be oiled periodically to maintain their corrosion resistance.
    Overall
    Lg.
    Max. Access
    Angle
    Material
    Each
    Made in the U.S.
     
    1/4" Square Drive
    1 3/8"45°Chrome-Plated Steel5521A29000000
    1 3/8"45°Black-Oxide Steel8541N1100000
     

    Impact Magnetic Square Drive Size Adapters

    Image of Product. Front orientation. Socket Adapters. Impact Magnetic Square Drive Size Adapters.
    A magnet holds the socket, making changes quicker. These adapters convert from one square-drive size to another. They’re sturdier and have more give than manual-drive adapters, so they'll withstand the high torque and force of impact tools.
    3/4" Square Drive—Adapter with 3/4" square drive requires a retaining ring on the female end for attachment to tools that have a hole- or hole-and-ring style socket retainer.
    Socket Adapters
    Retaining Rings
    Square Drive Size
    (Gender)
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Each
    Each
    3/4" (Female) × 1" (Male)1 3/8"1 3/4"Black-Oxide Steel5552A1160000005552A18100000
     

    Impact Quick-Change Socket Adapters

    Image of Product. Front orientation. Socket Adapters. Impact Quick-Change Socket Adapters.
    Pull the collar to quickly attach and remove sockets. Attach to an impact wrench that has a pin-style socket retainer, or use a compatible socket retaining ring and attach to tools that have a hole- or hole-and-ring style socket retainer. These adapters are made to withstand the high torque and force of impact tools.
    Overall
    Lg.
    Material
    Color
    Each
     
    1/4" Square Drive
    1 3/8"Magnesium Phosphate-Coated SteelBlack8525N11000000
     

    Impact Hex Bit Sockets

    Image of Product. Front orientation. Bit Sockets. Impact Hex Bit Sockets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    These sockets are made to withstand the high torque and force of impact tools.
    Drive
    Size
    Overall
    Lg.
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    1/4" Square Drive
    1/8"1 3/8"Black Oil-Coated SteelNoHex
    		54615A11000000
    5/32"1 3/8"Black Oil-Coated SteelNoHex
    		54615A1200000
    3/16"1 3/8"Black Oil-Coated SteelNoHex
    		54615A1300000
    7/32"1 3/8"Black Oil-Coated SteelNoHex
    		54615A1400000
    1/4"1 3/8"Black Oil-Coated SteelNoHex
    		54615A9600000
    5/16"1 3/8"Black Oil-Coated SteelNoHex
    		54615A1500000
    3/8"1 3/8"Black Oil-Coated SteelNoHex
    		54615A1600000
    2 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A1700000
    2.5 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A1800000
    3 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A1900000
    4 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3100000
    5 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3200000
    6 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3300000
    7 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3400000
    8 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3500000
    9 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3600000
    10 mm1 3/8"Black Oil-Coated SteelNoHex
    		54615A3700000
     

    Impact Flex Socket Adapters

    Convert your impact socket into a flex socket to access fasteners from an angle. Also known as universal joints. These adapters are sturdy, so they’ll withstand the high torque and force of impact tools.
    25° Maximum Access Angle
    Image of Product. Front orientation. Socket Adapters. Impact Flex Socket Adapters, 25° Maximum Access Angle.
    Image of Attribute. Front orientation. Contains Annotated. 25° Maximum Access Angle. Impact Flex Socket Adapters.
    Square Drive
    Size
    Overall
    Lg.
    Material
    Each
    Made in the U.S.
    1/4"1 3/8"Black-Oxide Steel7236A117000000
     

    Electrically-Insulating Square Drive Size Adapters

    Image of Product. Front orientation. Socket Adapters. Electrically-Insulating Square Drive Size Adapters.
    Insulated to protect against accidental contact with live electrical circuits, these adapters are tested to 1,000 volts to meet IEC 60900.
    Square Drive Size (Gender)
    Overall
    Lg.
    Material
    Specs.
    Met
    Each
    1/2" (Female) × 3/8" (Male)1 3/8"Plastic-Coated SteelIEC 6090055445A59000000
     

    Hex Bit Sockets

    Image of Product. Front orientation. Bit Sockets. Hex Bit Sockets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    Drive Size,
    mm
    Overall
    Lg.
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    1/4" Square Drive
    71 3/8"Chrome-Plated SteelNoHex
    		5557A71100000
     

    Impact Hex Bit Socket Sets

    Image of Product. Front orientation. Bit Sockets. Impact Hex Bit Socket Sets, Plastic Case.
    Image of Specification. Front orientation. For Hex Drives.

    Plastic Case

    For

    Hex

    Drives

    Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.
    No. of
    Pieces
    Sockets Included
    Material
    Container
    Type
    For Drive
    Style
    Each
    1/4" Square Drive
    141/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (1 3/8" O'all Lg.)
    2 mm, 2.5 mm, 3 mm, 5 mm, 6 mm, 7mm, 10 mm (1 3/8" O'all Lg.)    		Black-Oxide SteelPlastic CaseHex
    		6040A220000000
     

    Impact Torx Bit Sockets

    Image of Product. Top orientation. Bit Sockets. Impact Torx Bit Sockets .
    Image of Specification. Front orientation. For Torx Drives.

    For

    Torx

    Drives

    These sockets fasten Torx screws often used in vehicles, bicycles, and electronics. Also known as star drives. They’re sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools. You can use these bit sockets to drive fasteners with a Torx Plus drive style, but they won't grip as well.
    Drive
    Size
    Overall
    Lg.
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    1/4" Square Drive
    T101 3/8"Black Oil-Coated SteelNoTorx
    		1936N72000000
    T151 3/8"Black Oil-Coated SteelNoTorx
    		1936N7300000
    T201 3/8"Black Oil-Coated SteelNoTorx
    		1936N7400000
    T251 3/8"Black Oil-Coated SteelNoTorx
    		1936N7500000
    T271 3/8"Black Oil-Coated SteelNoTorx
    		1936N7600000
    T301 3/8"Black Oil-Coated SteelNoTorx
    		1936N7700000
     
    back to top