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    36 Products

    Low-Strength Steel Square Nuts

    Image of Product. Front orientation. Square Nuts. Low-Strength Steel Square Nuts.
    Large flat sides make these nuts easy to grip with a wrench and keep them from rotating in channels and square holes. About half the strength of medium-strength steel square nuts, use them in light duty fastening applications, such as securing access panels.
    Black-Zinc-Plated Steel—Black-zinc-plated steel square nuts resist corrosion in wet environments and have a black finish that blends in with dark surfaces.
    Steel—Steel square nuts are best for dry environments, since moisture will cause them to rust.
    Zinc-Plated Steel—Zinc-plated steel square nuts resist corrosion in wet environments.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel—ISO Class 5
    M4 × 0.7 mm73DIN 5575000000000000000
    M5 × 0.8 mm84DIN 5575000000000000000
    M6 × 1 mm105DIN 557250000000000000
    M8 × 1.25 mm136.5DIN 557250000000000000
    M10 × 1.5 mm178DIN 557100000000000000
    M12 × 1.75 mm1910DIN 55750000000000000
     
    Zinc-Plated Steel—ISO Class 5
    M4 × 0.7 mm73.2DIN 55710000000000000000
    M5 × 0.8 mm84DIN 55710000000000000000
    M6 × 1 mm105DIN 55710000000000000000
    M8 × 1.25 mm136.5DIN 557250000000000000
    M10 × 1.5 mm178DIN 5572500000000000000
    M12 × 1.75 mm1910DIN 557100000000000000
    M16 × 2 mm2413DIN 557500000000000000
    M20 × 2.5 mm3016DIN 557500000000000000
     
    Black-Zinc-Plated Steel—ISO Class 5
    M4 × 0.7 mm73DIN 557250000000000000
    M5 × 0.8 mm84DIN 557250000000000000
    M6 × 1 mm105DIN 557250000000000000
    M8 × 1.25 mm136.5DIN 557100000000000000
    M10 × 1.5 mm178DIN 5571000000000000000
    M16 × 2 mm2413DIN 55710000000000000
     

    Wing Nuts

    Image of Product. Front orientation. Thumb Nuts. Wing Nuts, Style 1.
    Image of Product. Bottom orientation. Thumb Nuts. Wing Nuts, Style 4.

    Style 1

    Style 4

    The easiest nuts to twist on and off by hand, these are commonly used to fasten parts that need to be frequently disassembled, such as access panels and covers. The wings give you more leverage than knurled-head nuts, so you can apply greater torque and achieve a tighter fit.
    Steel
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Base Dia.,
    mm
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    Image of Product. Front orientation. Thumb Nuts. Wing Nuts, Style 1.
    Style 1
    M3 × 0.5 mm19.5108ISO Class 5
    		—2500000000000000
    M4 × 0.7 mm17.68.68ISO Class 5
    		DIN 3155000000000000000
    M5 × 0.8 mm22.51110.3ISO Class 5
    		DIN 315250000000000000
    M6 × 1 mm27.813.612.7ISO Class 5
    		DIN 315250000000000000
    M8 × 1.25 mm30.314.813.8ISO Class 5
    		DIN 315200000000000000
    M10 × 1.5 mm36.217.716.5ISO Class 5
    		DIN 315100000000000000
    M12 × 1.75 mm49.424.122.5ISO Class 5
    		DIN 31550000000000000
     
    Image of Product. Bottom orientation. Thumb Nuts. Wing Nuts, Style 4.
    Style 4
    M4 × 0.7 mm2010.58ISO Class 5
    		DIN 315100000000000000
    M5 × 0.8 mm261311ISO Class 5
    		DIN 315100000000000000
    M6 × 1 mm331713ISO Class 5
    		DIN 315100000000000000
    M8 × 1.25 mm392016ISO Class 5
    		DIN 31550000000000000
    M10 × 1.5 mm512520ISO Class 5
    		DIN 315500000000000000
    M12 × 1.75 mm6533.523ISO Class 5
    		DIN 31510000000000000
    M16 × 2 mm7337.529ISO Class 5
    		DIN 315100000000000000
     

    Left-Hand-Thread Hex Nuts

    These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening.
    Low-Strength Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread 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.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M3 × 0.5 mm5.52.4ISO Class 5
    		DIN 934L25000000000000000
    M4 × 0.7 mm73.2ISO Class 5
    		DIN 934L250000000000000
     
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