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    55 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.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    7/16"-20
    1 1/4"9/16"Fully Threaded000000000000000000000000
    7/16"-20
    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"-20
    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"-20
    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"-20
    1 1/4"9/16"Fully Threaded000000000000000000000000
    7/16"-20
    4"5/8"Partially Threaded5/8"000000000000000000000000
    7/16"-20
    6"5/8"Partially Threaded5/8"000000000000000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    7/16"-20
    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"-20
    1 1/4"9/16"Fully Threaded0000000000000000000000000
     

    High-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. High-Profile Hex Nuts.
    Slightly taller than standard-profile hex nuts, these have a larger gripping area so your wrench or socket won't slip off as you tighten them. They're often used in vehicles and machinery where fasteners can be difficult to reach.
    High-Strength Steel
    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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    7/16"-20
    5/8"39/64"SAE Grade 8
    SAE J995
    25000000000000000
     

    Reinforced Threaded-Hole Bumpers

    Image of Product. Front orientation. Bumpers. Reinforced Threaded-Hole Bumpers, Style 1.

    Style 1

    With a metal base plate for added strength, these bumpers withstand repeated impacts for a longer service life than all-rubber bumpers. You can also use them as spacers and noise reducers. Twist them onto a threaded stud on your equipment, or pair them with your own stud to create a custom-length bumper.
    Multipurpose NeopreneAbout Multipurpose Neoprene
    Image of Product. Front orientation. Bumpers. Reinforced Threaded-Hole Bumpers, Style 1.

    Style 1

    A good choice for oily equipment that's exposed to sunlight, rain, and ozone. These aren't as oil resistant as Buna-N bumpers, but they can be used outdoors.
    Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
    Thread
    Size
    Dp.
    OD
    Ht.
    Hardness
    Hardness
    Rating
    Color
    Temp.,
    ° F
    Base Plate
    Material
    Nonmarking
    For Use
    Outdoors
    Each
    Style 1
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 40AMedium SoftBlack-40 to 200SteelNoYes0000000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 75AHardBlack-40 to 200SteelNoYes0000000000000
     
    Abrasion-Resistant Polyurethane RubberAbout Abrasion-Resistant Polyurethane Rubber
    Image of Product. Front orientation. Bumpers. Reinforced Threaded-Hole Bumpers, Style 1.

    Style 1

    Our toughest rubber bumpers, they keep their shape even when knocked and scraped by metal and other abrasive materials. They're often used on industrial vehicles, conveyors, and heavy construction equipment.
    Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
    Thread
    Size
    Dp.
    OD
    Ht.
    Hardness
    Hardness
    Rating
    Color
    Temp.,
    ° F
    Base Plate
    Material
    Nonmarking
    For Use
    Outdoors
    Each
    Style 1
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 30ASoftRed-40 to 200SteelNoYes00000000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 40AMedium SoftRed-40 to 200SteelNoYes00000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 50AMediumRed-40 to 200SteelNoYes0000000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 60AMedium HardBlack-40 to 200SteelNoYes0000000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 85AHardRed-40 to 200SteelNoYes000000000000
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 95AExtra HardBlack-40 to 200SteelNoYes0000000000000
     
    Oil-Resistant Buna-NAbout Oil-Resistant Buna-N
    Image of Product. Front orientation. Bumpers. Reinforced Threaded-Hole Bumpers, Style 1.

    Style 1

    These bumpers resist oil and fuels better than other rubber bumpers. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.
    Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
    Thread
    Each
    Size
    Dp.
    OD
    Ht.
    Hardness
    Hardness
    Rating
    Color
    Temp.,
    ° F
    Base Plate
    Material
    Nonmarking
    For Use
    Outdoors
    1-11
    12-Up
    Style 1
    7/16"-20
    1/2"1 1/4"1 1/4"Durometer 40AMedium SoftWhite-60 to 175SteelYesNo0000000000000000000
     

    Tube End Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Tube End Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Tube End Weld Nuts.
    Weld these nuts into tube ends to attach threaded fittings such as rod ends. The welded connection is stronger than tapping a tube directly. These nuts are often used to link control arms and suspensions. Also known as tube adapters and weldable threaded tube ends.
    For Tube
    Wall Thk.
    Thread
    Size
    Ht.
    Threading
    Thread
    Lg.
    Each
    4130 Alloy Steel
     
    For 5/8" OD Tubes
    0.058"7/16"-20
    1"Fully Threaded1"00000000000000
     
    For 3/4" OD Tubes
    0.058"7/16"-20
    1"Fully Threaded1"0000000000000
    0.065"7/16"-20
    1 3/8"Partially Threaded1 1/8"0000000000000
     
    For 7/8" OD Tubes
    0.058"7/16"-20
    1 3/8"Partially Threaded1 1/8"0000000000000
    0.065"7/16"-20
    1 3/8"Partially Threaded1"0000000000000
    0.083"7/16"-20
    1 1/2"Partially Threaded1 1/8"0000000000000
     
    For 1" OD Tubes
    0.058"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
    0.065"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
    0.083"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
    0.095"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
     

    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"-20
    3/4"5/16"21/32"0.062"43/64"ASME B1.110000000000000000
    7/16"-20
    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"-20
    3/4"21/64"21/32"0.05"43/64"ASME B1.125000000000000000
    7/16"-20
    3/4"21/64"21/32"0.085"43/64"ASME B1.11000000000000000
     

    Left-Hand-Thread Tube End Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Left-Hand-Thread Tube End Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Left-Hand-Thread Tube End Weld Nuts.
    These weld nuts prevent fasteners from backing out of assemblies that rotate counterclockwise. Their left-hand threads pair with left-hand screws and rods to stop the fastener from loosening as the assembly turns. Weld them to the end of a tube for a stronger connection than tapping the tube directly. Also known as tube adapters and weldable threaded tube ends.
    For Tube
    Wall Thk.
    Thread
    Size
    Ht.
    Threading
    Thread
    Lg.
    Each
    4130 Alloy Steel
     
    For 5/8" OD Tubes
    0.058"7/16"-20
    1"Fully Threaded1"00000000000000
     
    For 3/4" OD Tubes
    0.058"7/16"-20
    1"Fully Threaded1"0000000000000
    0.065"7/16"-20
    1 3/8"Partially Threaded1 1/8"0000000000000
     
    For 7/8" OD Tubes
    0.058"7/16"-20
    1 3/8"Partially Threaded1 1/8"0000000000000
    0.065"7/16"-20
    1 3/8"Partially Threaded1"0000000000000
    0.083"7/16"-20
    1 1/2"Partially Threaded1 1/8"0000000000000
     
    For 1" OD Tubes
    0.065"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
    0.095"7/16"-20
    1 1/2"Partially Threaded1"0000000000000
     
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