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    18 Products

    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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    Min. Thread
    Lg.
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    2"-4 1/2
    		4 1/2"2 3/4"Fully Threaded—000000000000000000000000000
     
    Steel
    2"-4 1/2
    		9"3 1/4"Partially Threaded4 3/8"000000000000000000000000000
     
    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    1-9
    10-49
    50-Up
    18-8 Stainless Steel
    2"-4 1/2
    		6"3 1/8"Fully Threaded000000000000000000000000000000
     

    Threaded Rods

    Anchor, connect, or hang components in a wide variety of applications, from mounting I-beams to suspending light fixtures.
    Medium-Strength Steel
    Image of Product. Front orientation. Threaded Rods. Threaded Rods.
    With tensile strengths from 110,000 psi to 125,000 psi, these rods are strong enough for most industrial applications, such as anchoring machinery and connecting pipe flanges. They are about twice as strong as low-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also medium-strength steel.
    Steel—Best for dry environments since moisture will cause these rods to rust.
    Lg.,
    ft.
    Tensile Strength,
    psi
    Fastener Strength
    Grade/Class
    Hardness
    Specs.
    Met
    Each
    Steel
     
    2"-4 1/2
    1125,000ASTM Grade B7
    		Rockwell C35ASTM A193
    		000000000000000
    2125,000ASTM Grade B7
    		Rockwell C35ASTM A193
    		000000000000000
    3125,000ASTM Grade B7
    		Rockwell C35ASTM A193
    		000000000000000
    6125,000ASTM Grade B7
    		Rockwell C35ASTM A193
    		000000000000000
    12125,000ASTM Grade B7
    		Rockwell C35ASTM A193
    		000000000000000
     
    High-Strength Steel
    Image of Product. Front orientation. Threaded Rods. Threaded Rods.
    With a tensile strength of 150,000 psi, these rods are strong enough to stabilize steel frameworks and structural supports, such as I-beams. They are about 25% stronger than medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also high-strength steel.
    Steel—Best for dry environments since moisture will cause these rods to rust.
    Lg.,
    ft.
    Tensile Strength,
    psi
    Fastener Strength
    Grade/Class
    Hardness
    Specs. Met
    Each
    Steel
     
    2"-4 1/2
    1150,000ASTM Grade BD
    		Rockwell C33ASTM A354 Grade BD0000000000000000
    2150,000ASTM Grade BD
    		Rockwell C33ASTM A354 Grade BD000000000000000
    3150,000ASTM Grade BD
    		Rockwell C33ASTM A354 Grade BD000000000000000
    6150,000ASTM Grade BD
    		Rockwell C33ASTM A354 Grade BD000000000000000
     
    Low-Strength Steel
    Image of Product. Front orientation. Threaded Rods. Threaded Rods.
    With a tensile strength of 50,000 psi or 60,000 psi, these rods are often used to suspend light fixtures, cable trays, and conduit from ceilings. They're about half the strength of medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also low-strength steel.
    Steel—Best for dry environments since moisture will cause these rods to rust.
    Lg.,
    ft.
    Tensile Strength,
    psi
    Hardness
    Pkg.
    Qty.
    Pkg.
    Steel
     
    2"-4 1/2
    150,000Rockwell B611000000000000000
    250,000Rockwell B611000000000000000
    350,000Rockwell B611000000000000000
    650,000Rockwell B611000000000000000
     
    Stainless Steel
    Image of Product. Front orientation. Threaded Rods. Threaded Rods.
    More corrosion resistant than steel rods and comparable in strength to low-strength steel.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these rods resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Lg.,
    ft.
    Tensile Strength,
    psi
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    2"-4 1/2
    170,000Rockwell B7010000000000000000
    270,000Rockwell B701000000000000000
     
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