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    30 Products

    Hex Drive Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Hex Drive Thread Adapters.
    Image of Product. Unthreaded Tip. Front orientation. Contains Annotated. Thread Adapters. Hex Drive Thread Adapters, Unthreaded Tip.

    Unthreaded Tip

    A hex drive on one end allows these adapters to be turned with a hex key for ease of installation. Use them to connect parts with coarse threads to parts with fine threads. They're high-strength black-oxide steel and corrosion resistant in dry environments.
    Unthreaded Tip—Adapters with an unthreaded tip thread into nuts more easily, reducing the chance of damaging threads.
    Thread
    Lg.
    Thread Size
    (A)
    Thread Size
    (B)
    (A)
    (B)
    Lg.
    Unthreaded
    Tip Length
    Drive
    Size
    Tensile Strength,
    psi
    Hardness
    Each
    Black-Oxide Alloy Steel
     
    Thread Adapters
    7/16"-14
    7/16"-20
    7/16"1"2"3/32"150,000Rockwell C3900000000000000
    7/16"-14
    7/16"-20
    3/4"1"2 1/2"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    3/4"1"2 3/4"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    3/4"1"3 1/4"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    1"1"3 1/2"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    1"1"3 3/4"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    1"1"4"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    1"1"4 1/2"3/16"150,000Rockwell C390000000000000
     
    Unthreaded Tip
    7/16"-14
    7/16"-20
    1 7/16"1"3 1/8"3/8"3/16"150,000Rockwell C390000000000000
    7/16"-14
    7/16"-20
    1 5/8"1 1/8"3 3/4"5/16"3/16"150,000Rockwell C3900000000000000
    7/16"-14
    7/16"-20
    1 5/8"1 1/8"5 1/2"5/16"3/16"150,000Rockwell C3900000000000000
    7/16"-14
    7/16"-20
    1 5/8"1 1/8"5 7/8"5/16"3/16"150,000Rockwell C3900000000000000
    7/16"-14
    7/16"-20
    1 5/8"1 1/8"7"5/16"3/16"150,000Rockwell C3900000000000000
    7/16"-14
    7/16"-20
    1 5/8"1 1/8"7 7/8"5/16"3/16"150,000Rockwell C3900000000000000
     

    Coupling Nuts

    Image of Product. Front orientation. Coupling Nuts. Coupling Nuts.
    Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.
    Low-Strength Steel
    Rated Grade 2 or lower, these are about half as strong as medium-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.
    Black-Oxide Steel—A dark, matte coating creates a finished look. Nuts offer minimal corrosion resistance, so they're best for dry environments.
    Hot-Dipped Galvanized Steel—Combines the strength of steel with the rust resistance of stainless steel. These nuts are an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals. Use with other hot-dipped galvanized fasteners to ensure the threads mate tightly.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    7/16"-14
    1 3/4"5/8"Fully Threaded000000000000000000000000
     
    Black-Oxide Steel
    7/16"-14
    1 1/4"3/4"Fully Threaded000000000000000000000
    7/16"-14
    1 3/4"5/8"Fully Threaded000000000000000000000
     
    Hot-Dipped Galvanized Steel
    7/16"-14
    1 3/4"5/8"Fully Threaded000000000000000000000
     
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are about twice as strong as low-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.
    Each
    Thread
    Size
    Lg.
    Wd.
    Fastener Strength
    Grade/Class
    Threading
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    7/16"-14
    1 3/4"5/8"SAE Grade 5
    Fully Threaded000000000000000000000000
     
    High-Strength Steel
    Rated Grade 8 or Class 10, these are about 25% stronger than medium-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.
    Each
    Thread
    Size
    Lg.
    Wd.
    Fastener Strength
    Grade/Class
    Threading
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    7/16"-14
    1 3/4"3/4"SAE Grade 8
    Fully Threaded000000000000000000000000000
     
    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.
    Highly Corrosion-Resistant 316 Stainless Steel—The most corrosion-resistant stainless steel coupling nuts we offer, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    Min. Thread
    Lg.
    1-9
    10-49
    50-Up
    18-8 Stainless Steel
    7/16"-14
    1 1/4"9/16"Fully Threaded000000000000000000000000
    7/16"-14
    6"5/8"Partially Threaded5/8"000000000000000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    7/16"-14
    1 1/4"9/16"Fully Threaded000000000000000000000
     
    Brass
    Brass—With a warm, polished look, these nuts are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. It is also softer than other metals, so it's easier to thread together.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    1-9
    10-49
    50-Up
    Brass
    7/16"-14
    1 1/4"9/16"Fully Threaded0000000000000000000000000
     

    Thread Adapters for Pullers

    Image of Product. Front orientation. Thread Adapters. Thread Adapters for Pullers.
    Use adapters on the ends of forcing screws and face-grip puller legs when pulling shafts, bearing caps, and pinions.
    Gender
    Thread Size
    (A)
    Thread Size
    (B)
    (A)
    (B)
    Each
    5/8"-18
    7/16"-14
    FemaleMale000000000000
     

    Self-Aligning Rectangular Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Self-Aligning Rectangular Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Self-Aligning Rectangular Weld Nuts.
    Help screws pass through perfectly every time. These nuts float inside a rectangular retainer that shifts and tilts to compensate for misalignment. A pilot tip locates the hole, and the retainer holds the nut in place during welding.
    Steel with Steel Retainer—Best for dry environments since moisture will create rust. Weld them to steel surfaces.
    Base
    Thread
    Size
    Lg.
    Wd.
    Thk.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Steel with Steel Retainer
    7/16"-14
    2 1/4"15/16"1/16"51/64"5000000000000000
     

    Square Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Square Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Square Weld Nuts.
    With four symmetrical projections, these nuts create the strongest hold in our offering. Unlike rectangular weld nuts, each projection is equidistant from the threads, so welds wrap evenly for extra strength and twist resistance. Projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All nuts have a collar pilot that guides them into the hole, holds them in place while welding, and protects the threads from weld spatter.
    Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
    Collar
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Ht.
    For Hole
    Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    7/16"-14
    3/4"5/16"21/32"0.062"43/64"ASME B1.11000000000000000
    7/16"-14
    3/4"5/16"21/32"0.063"43/64"ASME B1.12500000000000000
     

    Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Weld Nuts.
    Add permanent threads to thin metal with our go-to weld nuts. Unlike press-fit and rivet nuts, these nuts fuse to the base metal, so they won’t twist and pull out. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter. You can also install them on thick pieces of metal.
    Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
    Collar
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Ht.
    For Hole
    Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    7/16"-14
    3/4"21/64"21/32"0.05"43/64"ASME B1.125000000000000000
    7/16"-14
    3/4"21/64"21/32"0.085"43/64"ASME B1.11000000000000000
     
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