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    15 Products
    About Hex Nuts
    industrial info icon

    Choose a hex nut with the right profile, material, and strength for your application.

    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.
    Corrosion-Resistant Stainless Steel
    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
    5/16"-18
    		1/2"3/16"10000000000000000
     
    Black-Oxide 18-8 Stainless Steel
    5/16"-18
    		1/2"3/16"250000000000000
     

    Mil. Spec. Thin-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Mil. Spec. Thin-Profile Hex Nuts.
    These nuts are manufactured and tested to strict U.S. military standards for material and construction. About half the height of standard-profile nuts, they 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.
    Corrosion-Resistant Stainless Steel
    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.
    Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    5/16"-18
    		1/2"3/16"MS35691-11Fed. Spec. FF-N-836
    		5000000000000000
     

    Left-Hand-Thread Thin-Profile Hex Nuts

    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile 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. 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.
    Corrosion-Resistant Stainless Steel
    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
    5/16"-18
    		1/2"3/16"500000000000000
     

    Inch-to-Metric Male Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Male Hex Thread Adapters.
    Image of Attribute. Front orientation. Thread Adapters. Inch-to-Metric Male Hex Thread Adapters.

    One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.
    You can also use these adapters to change the gender of a mating part or increase or decrease its thread size. The small sizes work as standoffs, positioning and separating circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
    ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Thread Size
    (A)
    Thread Size
    (B)
    (A)
    (B),
    mm
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    Each
    18-8 Stainless Steel
    5/16"-18
    		M5 x 0.5 mm5/8"9.5Unified Standard Class 2A
    		Metric Class 6g
    		1/2"3/16"ASTM A58285,000Rockwell B80000000000000000
    5/16"-18
    		M6 x 0.75 mm5/8"12.7Unified Standard Class 2A
    		Metric Class 6g
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    5/16"-18
    		M8 x 1 mm5/8"12.7Unified Standard Class 2A
    		Metric Class 6g
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    5/16"-18
    		M10 x 1 mm5/8"15.9Unified Standard Class 2A
    		Metric Class 6g
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    5/16"-18
    		M10 x 1.25 mm5/8"15.9Unified Standard Class 2A
    		Metric Class 6g
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
     

    Inch-to-Inch Male Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male Hex Thread Adapters.
    Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection. You can also use these adapters to change the gender of a mating part from female to male, increase or decrease the thread size, or convert the threads from fine to coarse (and vice versa). The smaller adapters act as threaded standoffs, positioning and separating circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
    ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Thread Size
    (A)
    Thread Size
    (B)
    (A)
    (B)
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    Each
    18-8 Stainless Steel
    10-24
    		5/16"-18
    		3/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    1/4"-20
    		5/16"-18
    		5/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    1/4"-28
    		5/16"-18
    		5/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    1/4"-32
    		5/16"-18
    		5/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    5/16"-18
    		5/16"-24
    		5/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
    5/16"-18
    		5/16"-32
    		5/8"5/8"Unified Standard Class 2A
    		Unified Standard Class 2A
    		1/2"3/16"ASTM A58285,000Rockwell B8000000000000000
     
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