McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Size
    Industrial Info Compare
    Thread Direction
    Industrial Info Compare
    Thread Spacing
    Industrial Info Snippet
    Thread Type
    Fastener Strength Rating
    Specifications Met
    DFARS Specialty Metals
    Industrial Info Compare
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    97 Products
    About Hex Nuts
    industrial info icon

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

    Hex Nuts

    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    Medium-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    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.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 5
    		ASME B18.2.2195462A56400000
     
    Black-Oxide Steel
    1 1/2"-6
    		2 1/4"1 5/16"SAE Grade 5
    		ASME B18.2.2195479A44900000
     
    Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 5
    		ASME B18.2.2195505A6250000
     
    High-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    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.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Zinc-Flake-Coated Steel—The most durable zinc coating, zinc flake is a multilayer finish that resists wear for long-term rust protection. Similar to zinc yellow-chromate, it won't hold up to harsh chemicals like stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 8
    		194895A041000000
     
    Black-Oxide Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 8
    		194895A71300000
     
    Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 8
    		190499A0410000
     
    Zinc-Flake-Coated Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 8
    		193827A2970000
     
    Low-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. 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.
    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. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.
    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.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 2
    		ASME B18.2.2190473A04100000
     
    Hot-Dipped Galvanized Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 2
    		ASME B18.2.2190371A0730000
     
    Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 2
    		ASME B18.2.2190490A4410000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    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.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. Even if the coating wears off, these nuts will hold up in just about any environment, including salt water and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"—191845A04100000
    1 1/2"-6
    		2 1/4"1 9/32"ASTM F594192673A85700000
     
    Black-Oxide 18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"—197149A81500000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"—194804A0410000
    1 1/2"-6
    		2 1/4"1 9/32"ASTM F594194819A85400000
     
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"—190242A72300000
     
    Bronze
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    Silicon Bronze—More resistant to salt water than brass, these nuts are a good choice for marine environments. They are also stronger than brass and more resistant to abrasion and wear. Choose them for machinery with rotating parts or other applications where nearby components may rub against the nut.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Silicon Bronze
    1 1/2"-6
    		2 1/4"1 9/32"193439A041000000
     
    Brass
    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    1 1/2"-6
    		2 1/4"1 9/32"192676A041000000
     

    Heavy-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Heavy-Profile Hex Nuts.
    About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. 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
    Pkg.
    Qty.
    Pkg.
    Steel
    1 1/2"-6
    		2 3/8"1 15/32"SAE Grade 5
    		195045A04200000
     
    Extreme-Strength Steel
    These nuts are about 20% stronger than high-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    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. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.
    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.
    Hot-Dipped Galvanized Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade 2H
    		ASTM A194
    		195025A440000000
     
    Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade 2H
    		ASTM A194
    		190521A0390000
     
    Low-Strength Steel
    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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASME B18.2.2194811A04100000
     
    Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASME B18.2.2190498A0410000
     
    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—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 3/8"1 15/32"191849A043000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 3/8"1 15/32"191850A04300000
     
    Brass
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    1 1/2"-6
    		2 3/8"1 15/32"192680A058000000
     

    Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Nylon-Insert Locknuts.
    Versatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1 1/2"-6
    		2 13/64"1 39/64"SAE Grade 8
    		220197135A360000000
     
    Black-Oxide Steel
    1 1/2"-6
    		2 13/64"1 39/64"SAE Grade 8
    		220197135A44100000
     
    Steel
    1 1/2"-6
    		2 3/16"1 39/64"SAE Grade 8
    		220190630A20600000
     
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 13/64"1 39/64"SAE Grade 5
    		220190640A420000000
     
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    316 Stainless Steel—Our most corrosion-resistant nuts, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 13/64"1 39/64"220191831A041000000
     
    316 Stainless Steel
    1 1/2"-6
    		2 13/64"1 39/64"220190715A22000000
     

    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.
    Medium-Strength Steel
    These Grade 5 or Class 04 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 5
    		ASME B18.2.2194846A043000000
     
    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.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    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.
    Zinc-Yellow-Chromate-Plated Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 8
    		ASME B18.2.2193839A043000000
     
    Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 8
    		ASME B18.2.2192052A36000000
     
    Low-Strength Steel
    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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 2
    		191078A04300000
     
    Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 2
    		190494A1420000
     
    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—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"27/32"191847A04100000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 1/4"27/32"194805A26700000
     
    Brass
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    1 1/2"-6
    		2 1/4"27/32"192174A041000000
     

    Structural Heavy-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Structural Heavy-Profile Hex Nuts.
    These nuts are designed to secure ASTM A325 screws in structural joints, such as mating I-beams, columns, and joists. About 10% wider and taller than standard-profile hex nuts, they handle heavier loads by distributing them over a larger area.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    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.
    Black-Oxide Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade C
    		ASTM A563
    		190580A717000000
     
    Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade C
    		ASTM A563
    		190580A95700000
     
    Extreme-Strength Steel
    Rated Grade DH, these nuts are about 20% stronger than high-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    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. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.
    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.
    Hot-Dipped Galvanized Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade DH
    		ASTM A563
    		191694A345000000
     
    Steel
    1 1/2"-6
    		2 3/8"1 15/32"ASTM Grade DH
    		ASTM A563
    		198427A60000000
     

    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.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    Min. Thread
    Lg.
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    1 1/2"-6
    		3 1/2"2"Fully Threaded—90264A290000000000000000000
    1 1/2"-6
    		8"2 3/8"Partially Threaded3 7/8"90264A703000000000000000
     
    Black-Oxide Steel
    1 1/2"-6
    		4"2"Fully Threaded—91034A423000000000000000
     
    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
    1 1/2"-6
    		3 1/2"2"SAE Grade 5
    		Fully Threaded90977A245000000000000000000
     
    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
    1 1/2"-6
    		3 1/2"2 1/4"SAE Grade 8
    		Fully Threaded90983A251000000000000000000
     
    Extreme-Strength Steel
    Made from Grade 2H steel, these are about 20% stronger than high-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Each
    Thread
    Size
    Lg.
    Wd.
    Fastener Strength
    Grade/Class
    Threading
    1-9
    10-49
    50-Up
    Steel
    1 1/2"-6
    		3 1/2"2 1/2"ASTM Grade 2H
    		Fully Threaded90654A351000000000000000000
     
    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.
    Each
    Thread
    Size
    Lg.
    Wd.
    Threading
    1-9
    10-49
    50-Up
    18-8 Stainless Steel
    1 1/2"-6
    		3 1/2"2"Fully Threaded90268A513000000000000000000
     
    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
    1 1/2"-6
    		3 1/2"2"Fully Threaded90465A33300000000000000000000
     

    Heavy-Profile Hex Nuts for High-Pressure Applications

    Image of Product. Bottom orientation. Hex Nuts. Heavy-Profile Hex Nuts for High-Pressure Applications.
    These nuts are hardened, so they maintain their strength under high pressure and temperature. Pair them with ASTM A193 screws to fasten critical components, such as valves and flanges, in pressure tanks, boilers, and heat exchangers. About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Corrosion-Resistant Stainless Steel
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 3/8"1 1/2"ASTM Grade 8M
    		ASTM A194
    		197619A950000000
     

    Left-Hand-Thread Hex Nuts

    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. 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.
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. 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
    Pkg.
    Qty.
    Pkg.
    Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 5
    		195140A181000000
     
    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.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 8
    		199891A215000000
     
    Low-Strength Steel
    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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Steel
    1 1/2"-6
    		2 1/4"1 9/32"SAE Grade 2
    		190519A041000000
     
    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—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"195195A300000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 1/4"1 9/32"195355A294000000
     

    Thin-Heavy-Profile Hex Nuts

    About half the height of standard-profile hex nuts and 10% wider, these fit in spaces with low clearance and handle heavier loads by distributing them over a larger area. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
    Extreme-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Heavy-Profile Hex Nuts.
    These nuts are about 20% stronger than high-strength steel nuts. 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
    1 1/2"-6
    		2 3/8"27/32"ASTM Grade 2H
    		ASME B18.2.2, ASTM A194195010A21000000
     
    Low-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Heavy-Profile 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.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Steel
    1 1/2"-6
    		2 3/8"27/32"SAE Grade 2
    		190502A44000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Heavy-Profile Hex Nuts.
    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
    1 1/2"-6
    		2 3/8"27/32"191851A665000000
     
    Brass
    Image of Product. Front orientation. Hex Nuts. Thin-Heavy-Profile Hex Nuts.
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    1 1/2"-6
    		2 3/8"27/32"192683A885000000
     

    Heavy-Profile Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Heavy-Profile Nylon-Insert Locknuts.
    About 10% wider and taller than standard-profile locknuts, these handle heavier loads by distributing them over a larger area. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1 1/2"-6
    		2 25/64"1 59/64"SAE Grade 8
    		220197135A406000000
     
    Black-Oxide Steel
    1 1/2"-6
    		2 25/64"1 59/64"SAE Grade 8
    		220197135A44700000
     
    Steel
    1 1/2"-6
    		2 25/64"1 59/64"SAE Grade 8
    		220190630A21300000
     
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. 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.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 3/8"1 59/64"250190648A265000000
     

    Steel Slip-On Twist-Close Split Nuts

    Image of Product. Front orientation. Split Nuts. Steel Slip-On Twist-Close Split Nuts.
    Attach at any point on a threaded rod for quick installation. Swivel the nut open and position it on the threaded rod, then twist closed to secure. They're zinc plated to resist corrosion in wet environments.
    Thread
    Size
    Wd.
    Ht.
    Each
    Zinc-Plated Steel
    1 1/2"-6
    		2 9/16"1 7/16"90125A1120000000
     

    Locknuts for use with Cotter Pins

    Image of ProductInUse. Front orientation. Locknuts. Locknuts for use with Cotter Pins.
    Image of Product. Front orientation. Locknuts. Locknuts for use with Cotter Pins.
    Use these locknuts to secure rotating parts subjected to mild vibration, such as the wheels on carts and hand trucks. They’re not recommended for use on parts exposed to high vibration because the pin can shear under prolonged stress. These nuts are reusable, but you'll need a new cotter pin (not included) with each use.
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. 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.
    Ht.
    For Cotter
    Pin Dia.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"1 5/16"5/16"195030A370000000
     
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    For Cotter
    Pin Dia.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"1 1/2"1/4"191853A041000000
     

    Thin-Profile Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Thin-Profile Nylon-Insert Locknuts.
    About half the height of standard-profile locknuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against a hex nut to hold it in place. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 3/16"51/64"SAE Grade 5
    		220191342A310000000
     
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. 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.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 3/16"51/64"220190566A27100000
     
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 3/16"51/64"220190101A150000000
     

    Top-Lock Distorted-Thread Locknuts

    Image of Product. Front orientation. Locknuts. Top-Lock Distorted-Thread Locknuts.
    Irregularly shaped threads at the top of these locknuts grip the screw for a stronger hold than nylon-insert locknuts. Although the threads prevent the nut from backing out due to vibration, they also increase the effort to install and remove. To get these nuts off, you may need special tools, such as an impact wrench or propane torch. Nuts are not reusable.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"1 5/16"ASTM Grade C
    		192501A54500000
     

    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.
    Medium-Strength Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    These Grade 5 or Class 04 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 5
    		199612A224000000
     
    Low-Strength Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile 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.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    1 1/2"-6
    		2 1/4"27/32"SAE Grade 2
    		ASTM A108190519A891000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    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—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1 1/2"-6
    		2 1/4"27/32"ASME B18.2.2194450A539000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    1 1/2"-6
    		2 1/4"27/32"—193031A19100000
     

    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.
    Steel—Steel square nuts are best for dry environments, since moisture will cause them to rust.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Steel
    1 1/2"-6
    		2 1/4"1 5/16"190043A12500000
     

    Medium-Strength Steel Square Nuts

    Image of Product. Front orientation. Square Nuts. Medium-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. Made from SAE Grade 5 steel, they're suitable for fastening most machinery and equipment.
    Zinc-Plated Steel—Zinc-plated steel square nuts resist corrosion in wet environments.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel—SAE Grade 5
    1 1/2"-6
    		2 1/4"1 5/16"198694A165000000
     

    Jam Nuts for Turnbuckles

    Tighten these nuts against the turnbuckle body to prevent the end fitting from unscrewing.
    For Galvanized Steel Turnbuckles
    Image of Product. Front orientation. Turnbuckles. Jam Nuts for Turnbuckles.
    Left- and Right-Hand
    Thread Direction
    Thread
    Size
    Wd.
    Ht.
    Includes
    Each
    Grade 2 Galvanized Steel
    1 1/2"-6
    		2 1/4"27/32"One Left-Hand Threaded Jam Nut, One Right-Hand Threaded Jam Nut30045T812000000
     

    Heavy-Profile Steel-Insert Locknuts for Extreme Vibration

    Image of Product. Bottom orientation. Locknuts. Heavy-Profile Steel-Insert Locknuts for Extreme Vibration.
    Nearly 10% wider and taller than standard steel-insert locknuts, these handle heavier loads by distributing them over a larger area. They also have the most secure hold of all the heavy-profile locknuts we offer. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure that they're even used to fasten components on roller coasters. These locknuts are also reusable, but their holding power decreases after the first use, so you should use a new nut for the strongest possible hold.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. 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
    Each
    Steel
    1 1/2"-6
    		2 3/8"1 11/16"SAE Grade 8
    		90621A065000000
     

    Steel-Insert Locknuts for Extreme Vibration

    Image of Product. Bottom orientation. Locknuts. Steel-Insert Locknuts for Extreme Vibration.
    The most secure hold of all the locknuts we offer. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure that they're even used to fasten components on roller coasters. These locknuts are also reusable, but their holding power decreases after the first use, so you should use a new nut for the strongest possible hold.
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. 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
    Each
    Steel
    1 1/2"-6
    		2 1/4"1 1/2"SAE Grade 5
    		90619A475000000
     

    Left-Hand to Right-Hand Female Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Left-Hand to Right-Hand Female Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Left-Hand to Right-Hand Female Hex Thread Adapters.
    Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.
    Zinc-Plated Steel—Zinc-plated steel adapters are strong and corrosion resistant.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Each
    Thread Size
    (A)
    Thread Size
    (B)
    (A)
    (B)
    (A)
    (B)
    Size
    Length
    Hardness
    1-9
    10-Up
    Zinc-Plated Steel
    1 1/2"-6
    		1 1/2"-6
    		3 3/4"3 3/4"Unified Standard Class 2B
    		Unified Standard Class 2B
    		2 3/8"8"Rockwell B6594280A104000000000000
     

    Thin-Profile Steel-Insert Locknuts for Extreme Vibration

    Image of Product. Bottom orientation. Locknuts. Thin-Profile Steel-Insert Locknuts for Extreme Vibration.
    About two-thirds the height of standard steel-insert locknuts, these fit in spaces with low clearance and offer the most secure hold of all our thin-profile locknuts. You can also use them as jam nuts by threading them against a hex nut to hold it in place. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure, they can even fasten components on roller-coasters. You can reuse them once or twice, but their holding power decreases after the first use, so you should use a new locknut for the strongest possible hold.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. 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
    Each
    Steel
    1 1/2"-6
    		2 1/4"1 1/16"SAE Grade 8
    		90619A228000000
     

    Eye Nuts—For Lifting

    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style A.
    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style B.
    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style C.

    Style A

    Style B

    Style C

    Create your own lifting eye by adding an eye nut to a stud or bolt.
    Note: Capacity applies to the eye nut only. The stud or bolt you use will affect the overall capacity. Eye nuts are for vertical lifting only.
    Warning: Never use to lift people or items over people.
    Fully Threaded
    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style A.
    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style B.

    Style A

    Style B

    Image of Product. Front orientation. Eye Nuts. Eye Nuts—For Lifting, Style C.

    Style C

    Zinc-Plated Steel—Zinc-plated steel eye nuts offer good corrosion resistance.
    Galvanized Steel—Galvanized steel eye nuts have a hot-dipped finish for more corrosion resistance than zinc-plated steel.
    Style
    Thread
    Size
    Overall
    Lg.
    Eye
    Dia.
    Vert. Cap.,
    lb.
    Each
    Steel
     
    Closed Eye Nuts
    A1 1/2"-6
    		6 1/2"2 1/2"35,6003274T480000000
     
    Zinc-Plated Steel
     
    Closed Eye Nuts
    C1 1/2"-6
    		5 3/4"3 1/8"10,1253112T61000000
     
    Galvanized Steel
     
    Closed Eye Nuts
    B1 1/2"-6
    		7"3 1/8"22,5003019T27000000
     

    Turnbuckle Bodies—Not for Lifting

    Image of Product. Front orientation. Turnbuckles. Turnbuckle Bodies—Not for Lifting.
    Forged Steel
    Forged bodies are stronger than cast bodies.
    Wt. Cap.,
    lb.
    Max.
    Adjustment
    Thread
    Size
    Overall
    Lg.
    Each
    21,0006"1 1/2"-6
    		10 3/8"2995T431000000
     

    Helical Threaded Inserts with Installation Tools

    Image of Product. Drill Bit, Installation Tool and Through-Hole Tap. Front orientation. Threaded Inserts. Helical Threaded Inserts with Installation Tools, Pronged, Drill Bit, Installation Tool, Through-Hole Tap.

    Drill Bit, Installation Tool

    and Through-Hole Tap

    Quickly restore stripped threads—these inserts come with through-hole taps and installation tools. The tough coils on these inserts expand once installed to anchor in a tapped hole.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of Inserts
    Included
    Includes
    Each
    Pronged
     
    18-8 Stainless Steel
    1 1/2"-6
    		2.250"1 17/32"
    		1.531"4Drill Bit
    Installation Tool
    Through-Hole Tap    		91732A3250000000
     

    Key-Locking Threaded Inserts with Installation Tools

    Image of Product. Front orientation. Threaded Inserts. Key-Locking Threaded Inserts with Installation Tools.
    Paired with the right tool for installation, these inserts create strong threads in soft metal, such as aluminum. They have keys that drive into material to prevent inserts from slipping and rotating in the hole.
    Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
    Black Phosphate-Coated Steel—These inserts resist occasional moisture.
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    For Max. Hole
    Dia.
    No. of Locking
    Keys
    No. of Inserts
    Included
    Each
    Standard Wall
     
    Black Phosphate-Coated Steel
    1 1/2"-6
    		1 7/8"-12
    		2"1 13/16"
    1.813"    		4290245A0670000000
     

    Helical Threaded Inserts

    Image of Product. Pronged. Bottom orientation. Threaded Inserts. Helical Threaded Inserts, Pronged.

    Pronged

    Restore, reinforce, or create threads in metal. The tough coils on these inserts expand once installed to anchor in a tapped hole. Also known as Heli-Coil inserts, they're often used in engine heads and machinery housings where strong connections are critical. Unlike threadlocking inserts, you can remove and reuse them without them losing their strength.
    Installation requires a drill bit, a helical insert tap, and an installation tool.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Through-Hole
    Taps
    Closed-End
    Hole Taps
    Inserts with
    Installation Tools
    Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    No. of Inserts
    Included
    Each
    Pronged
     
    18-8 Stainless Steel
    1 1/2"-6
    		1.500"1 35/64"
    		1.547"MS122094191732A05000000091709A119000000091709A5180000000————0
    1 1/2"-6
    		2.250"1 35/64"
    		1.547"MS122134191732A0520000091709A11900000091709A518000000491732A3250000000
     
    Extraction Tools
    Remove installed helical inserts.
    For Pronged Helical Inserts—Place the tip into pronged inserts and lightly strike the tool’s head. Then, turn the tool counterclockwise with pressure to extract the insert.
    For Thread Size
    Each
    For Pronged Helical Inserts
    1 1/8"-7, 1 1/8"-12, 1 1/4"-7, 1 1/4"-8, 1 1/4"-12, 1 3/8"-6, 1 3/8"-12, 1 1/2"-6, 1 1/2"-8, 1 1/2"-12, M27, M30, M36, M39
    		90254A3600000000
     

    Key-Locking Threaded Inserts for Soft Metal

    Image of Product. Bottom orientation. Threaded Inserts. Key-Locking Threaded Inserts for Soft Metal.
    Add strong threads in soft metal, such as aluminum. The keys on these inserts drive into holes to hold more securely than thread-locking or helical inserts. They prevent slipping and rotating, so they’re stable enough for use in vehicle or aerospace parts that experience heavy vibration. These inserts are comparable to Keensert inserts.
    To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.
    Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
    Black Phosphate-Coated Steel—These inserts resist occasional moisture.
    Inserts
    Installation
    Tools
    Inserts with
    Installation Tools
    Each
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    For Max.
    Hole Dia.
    No. of Locking
    Keys
    1-9
    10-Up
    Each
    No. of Inserts
    Included
    Each
    Standard Wall
     
    Black Phosphate-Coated Steel
    1 1/2"-6
    		1 7/8"-12
    		2"1.813"490245A1080000000000000092100A7580000000290245A0670000000
     
    back to top