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    18 Products
    About Hex Nuts
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    Choose a hex nut with the right profile, material, and strength for your application.

    Hex Nut Profile

    Performance

    Hex Nuts

    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    High-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    Rated Grade 8, Grade C, or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, motors, and other high-stress applications. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Blue Dyed Steel—These metric-sized nuts have a distinctive blue color, so you can easily tell them apart from inch nuts.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Blue Dyed Steel
    M6 × 1 mm105Class 10DIN 9345099899A21100000
    M8 × 1.25 mm136.5Class 10DIN 9345099899A21600000
    M10 × 1.5 mm178Class 10DIN 9342599899A22200000
    M12 × 1.75 mm1910Class 10DIN 9341099899A2270000
    M14 × 2 mm2211Class 10DIN 9341099899A23100000
    M16 × 2 mm2413Class 10DIN 9341099899A23600000
    M18 × 2.5 mm2715Class 10DIN 934199899A2010000
    M20 × 2.5 mm3016Class 10DIN 934199899A2430000
    M24 × 3 mm3619Class 10DIN 934199899A2470000
    M30 × 3.5 mm4624Class 10DIN 934199899A2510000
    M36 × 4 mm5529Class 10DIN 934199899A25500000
     

    Thin-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Thin-Profile Hex Nuts.
    About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
    Medium-Strength Steel
    These Grade 5 or Class 04 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Blue Dyed Steel—These metric-sized nuts have a distinctive blue color, so you can easily tell them apart from inch nuts.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Blue Dyed Steel
    M6 × 1 mm103.2Class 04DIN 439B, ISO 40355096276A11000000
    M8 × 1.25 mm134Class 04DIN 439B, ISO 40355096276A2100000
    M10 × 1.5 mm175Class 04DIN 439B, ISO 40355096276A31000000
    M12 × 1.75 mm196Class 04DIN 439B, ISO 40352596276A4100000
    M16 × 2 mm248Class 04DIN 439B, ISO 40351096276A6100000
    M20 × 2.5 mm3010Class 04DIN 439B, ISO 40351096276A81000000
    M24 × 3 mm3612Class 04DIN 439B, ISO 4035196276A9100000
     
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