McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Size
    Industrial Info Compare
    Shank Type
    Drill Bit Size
    Attribute Image
    Thread Pitch
    Industrial Info Snippet
    Attribute Image
    Sold As
    Maximum Tapping Depth
    Attribute Image
    Bit Style
    Overall Length
    Flute Type
    Square Drive Size
    Attribute Image
    Chamfer Type
    Number of Flutes
    Driver Style
    Length
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Hex Shank Size
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Square Drive Gender
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    5 Products

    Hex-Bit Taps

    Image of Product. Front orientation. Taps. For Fastener Threads, Sold Individually, Right-Hand Thread, For Threading Fastener Threads, Bit.
    You only need one tool to turn these taps and install screws. The 1/4" hex shank fits hand or powered screwdrivers for threading holes. Then switch to a screwdriver bit to finish the job. To tap in hard-to-reach spots, add a bit extension. Taps have straight flutes that are good for most jobs.
    High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.
    Uncoated—The economical choice, these won't last as long as coated taps.
    Plug Chamfer—Our go-to chamfer type, these thread both through holes and blind holes. The tapered section is shorter than a taper chamfer and longer than bottoming chamfer. As a result, they're easier to turn than bottoming taps but require more force than taper taps.
    Drill Bit
    Plug Chamfer
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    No. of
    Flutes
    Size,
    mm
    Decimal Size
    Equiv.
    Shank
    Type
    Hex Shank
    Size
    Each
    High-Speed Steel
     
    Uncoated
    M3 × 0.5 mm7/16"1 5/16"Metric
    32.5
    0.0984"Hex1/4"1021N21000000
    M3.5 × 0.6 mm3/8"1 5/16"Metric
    32.9
    0.1142"Hex1/4"1021N2200000
     

    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.
    Black-Oxide Steel—Black-oxide steel adapters are easy to grip when dirty or wet.
    Square Drive Size (Gender)
    Overall
    Lg.
    Each
    Chrome-Plated Steel
    3/8" (Female) × 1/2" (Male)1 5/16"5522A3300000
     
    Black-Oxide Steel
    3/8" (Female) × 1/2" (Male)1 5/16"55315A2200000
    1/2" (Female) × 3/8" (Male)1 5/16"55585A1100000
     
    back to top