McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    22 Products

    Hex Nuts
    3D CAD models available

    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    Low-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    0-80
    5/32"3/64"ASME B18.6.310000000000000000
    1-64
    5/32"3/64"ASME B18.6.3500000000000000
    1-72
    5/32"3/64"ASME B18.6.31000000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0000-160
    1/16"1/32"1000000000000000
    000-120
    5/64"1/32"500000000000000
    00-90
    5/64"3/64"500000000000000
    0-80
    5/32"3/64"1000000000000000
    1-64
    5/32"3/64"1000000000000000
    1-72
    5/32"3/64"1000000000000000
     
    Brass
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    000-120
    5/64"1/32"10000000000000000
    00-90
    5/64"3/64"1000000000000000
    00-96
    5/64"3/64"10000000000000
    0-80
    5/32"3/64"1000000000000000
    1-64
    5/32"3/64"1000000000000000
    1-72
    5/32"3/64"1000000000000000
     

    Mil. Spec. Hex Nuts
    3D CAD models available

    These nuts are manufactured and tested to strict U.S. military standards for material and construction.
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Mil. Spec. Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Mil. Specs.
    Met
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0-80
    5/32"3/64"MS35650-314Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35500000000000000
     

    Narrow-Profile Hex Nuts
    3D CAD models available

    When you have limited space for tightening with a wrench, use these nuts. Since they’re about 20% narrower, they fit in tight spots where standard-profile nuts won't fit. Also known as small-pattern hex nuts.
    Corrosion-Resistant Stainless Steel
    Image of Product. Bottom orientation. Hex Nuts. Narrow-Profile Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0-80
    1/8"3/64"5000000000000000
    1-64
    1/8"3/64"500000000000000
    1-72
    7/64"1/16"500000000000000
     
    Black-Oxide 18-8 Stainless Steel
    0-80
    1/8"3/64"500000000000000
     
    Brass
    Image of Product. Bottom orientation. Hex Nuts. Narrow-Profile Hex Nuts.
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    0-80
    3/32"3/64"10000000000000000
    1-72
    7/64"1/16"1000000000000000
     
    back to top