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Steel Black Hex Nuts

3 results

Hillman 7/16-in x 14 Black Steel Flange Nut 2 Count

Hillman 

7/16-in x 14 Black Steel Flange Nut 2 Count

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Hillman 1/2-in x 13 Black Steel Flange Nut 2 Count

Hillman 

1/2-in x 13 Black Steel Flange Nut 2 Count

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Hillman 12mm x 1.75 Black Steel Flange Nut 2 Count

Hillman 

12mm x 1.75 Black Steel Flange Nut 2 Count

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1/4-in x 20 Stainless steel Steel Hex Nut 10 Count

Hillman   1/4-in x 20 Stainless steel Steel Hex Nut 10 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Stainless steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

10mm x 1.5 Zinc-plated Steel Flange Nut 4 Count

Hillman   10mm x 1.5 Zinc-plated Steel Flange Nut 4 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Hex flange nuts have a flat bearing surface below the nut and are designed to carry the load distribution over a greater surface area. Class 10 steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

5/16-in x 18 Zinc-plated Steel Flange Nut 3 Count

Hillman   5/16-in x 18 Zinc-plated Steel Flange Nut 3 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Hex flange nuts have a flat bearing surface below the nut and are designed to carry the load distribution over a greater surface area. Grade 5 medium carbon steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

1/4-in x 20 Zinc-plated Steel Hex Nut 100 Count

Hillman   1/4-in x 20 Zinc-plated Steel Hex Nut 100 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Grade 2 zinc steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

1/4-in x 20 Zinc-plated Steel Hex Nut 12 Count

Hillman   1/4-in x 20 Zinc-plated Steel Hex Nut 12 Count

Hex nuts are to be used with machine bolts to adhere facing materials to prevent tension and shear movement. They are specifically useful in wood to wood, wood to metal, or metal to metal applications. Hex nuts made with Grade 2 zinc are recommended for most general uses and offer moderate corrosion resistance. For your safety, do not weld zinc products as they may release toxic fumes when superheated. When installing, be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish. These hex nuts measure 1/4-in wide. They feature 20 screw threads per inch.

1/4-in x 16 Zinc-plated Steel Hex Nut 16 Count

Project Source   1/4-in x 16 Zinc-plated Steel Hex Nut 16 Count

This Project Source 16 pack hex nut set comes with a variety of sizes for any home project. Finished in nickel and brass, they are sure to match any home project.

3/8-in x 16 Zinc-plated Steel Flange Nut 2 Count

Hillman   3/8-in x 16 Zinc-plated Steel Flange Nut 2 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Hex flange nuts have a flat bearing surface below the nut and are designed to carry the load distribution over a greater surface area. Grade 5 medium carbon steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

#8 x 32 Zinc-plated Steel Hex Nut 22 Count

Hillman   #8 x 32 Zinc-plated Steel Hex Nut 22 Count

Hex machine screw nuts are used for fastening to a bolt when mechanically joining materials together. Machine screw nuts are designed to be used with machine screws. This type of nomenclature refers to nuts used with smaller machine screw sizes under 1/4". Size listed refers to the nominal thread diameter of the nut.

6mm x 1.00 Zinc-plated Steel Hex Nut 10 Count

Hillman   6mm x 1.00 Zinc-plated Steel Hex Nut 10 Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Grade 2 zinc metric steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

7/16-in x 14 Zinc-plated Steel Hex Nut Count

Hillman   7/16-in x 14 Zinc-plated Steel Hex Nut Count

Hex nuts are used to prevent shear movement and tension when adhering facing materials together with machine bolts. Hex nuts are commonly used in wood to wood, wood to metal, and metal to metal applications. Grade 2 zinc steel hex nuts are recommended for most general uses and are corrosion resistant. Be sure to pre-drill any holes and to use washers and bolts that are a similar grade and finish.

3/8-in x 16 Steel Steel Flange Nut 2 Count

Hillman   3/8-in x 16 Steel Steel Flange Nut 2 Count

Grade 8 Flange Lock Nuts are one-piece, all-metal prevailing torque hex nuts. They can be screwed onto the end of a flange bolt to create a secure, closed fastener.


Hex Nuts for Secure and Reliable Fastening Applications

Hex nuts are essential fasteners used to secure bolts and threaded rods across a wide range of construction, repair and maintenance projects. Designed with a six-sided shape for easy tightening, they provide dependable holding strength for structural and mechanical connections. At Lowe’s, you can find hex nuts in different styles and materials suited for both indoor and outdoor applications.


Benefits of Hex Nuts

  • Strong and Dependable Fastening: They’re designed to pair with bolts and threaded rods to create secure connections that resist loosening under load.
  • Easy to Install and Adjust: The hex shape allows for straightforward tightening using common hand tools or power drivers.
  • Versatile Use Across Projects: They’re suitable for furniture assembly, automotive repairs, machinery, framing and general construction.
  • Multiple Types: Hex, flange jam and other styles support different load requirements and spacing needs.
  • Various Materials: Choose from steel, brass and nylon options to match fasteners to specific environments and performance requirements.


Key Features of Hex Nuts

  • Standard Hex Design: The six-sided shape provides consistent grip and torque control during installation.
  • Flange-Style Options: Hex flange nut designs help distribute load and reduce the need for separate washers.
  • Heavy-Duty Variations: Heavy hex nuts offer added thickness for increased strength in structural applications.
  • Material Variety: They’re available in steel for strength, brass for corrosion resistance, and nylon for lightweight or nonconductive uses.
  • Thread Compatibility: They’re manufactured to fit standard bolt and rod threading for reliable fastening performance.


How to Choose Hex Nuts

  • Choose hex nuts for general fastening, flange styles for wide load distribution or jam nuts for locking applications.
  • Steel works well for strength-focused builds, while brass suits corrosive environments and nylon supports lightweight assemblies.
  • Heavy-duty connections may benefit from heavy hex nuts designed for added durability.
  • Consider moisture, temperature and vibration when selecting materials and nut styles.
  • Ensure compatibility with the diameter and thread pitch of the bolts you’re using in your project.


From securing structural connections to assembling equipment and fixtures, hex nuts play a key role in fastening systems. Whether you’re selecting hex styles for standard applications, heavy hex nuts for added strength or hex flange nuts to help distribute load, these fasteners support both performance and durability. Shop hex nuts along with matching bolts, washers and threaded rods for your project at Lowe’s.