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30mm Hex Bolts

44 results

Hillman 8Mm x 30Mm Zinc-plated Coarse Thread Hex Bolt (2-Count)

Hillman 

8Mm x 30Mm Zinc-plated Coarse Thread Hex Bolt (2-Count)

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4.4
10
Hillman 6mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

Hillman 

6mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

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4.7
10
Hillman 10mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

Hillman 

10mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

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3.3
4
Hillman 8mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

Hillman 

8mm x 30mm Stainless Coarse Thread Hex Bolt (5-Count)

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5.0
14
Hillman 6mm x 30mm Zinc-Plated Coarse Thread Hex Bolt (2-Count)

Hillman 

6mm x 30mm Zinc-Plated Coarse Thread Hex Bolt (2-Count)

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5.0
6
Unique Bargains 15pcs Flanged Hex Head Bolts M6 x 30mm 304 Stainless Steel External Hex Drive Screws Metric Fully Threaded Screw for Furniture Car DIY Project [Silver Tone]
Multiple Options Available

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15pcs Flanged Hex Head Bolts M6 x 30mm 304 Stainless Steel External Hex Drive Screws Metric Fully Threaded Screw for Furniture Car DIY Project [Silver Tone]

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Unique Bargains M8 x 30mm Hex Head Screws Bolts Nuts Flat and Lock Washers Kits 304 Stainless Steel Fully Thread Hexagon Bolts 10 Sets

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M8 x 30mm Hex Head Screws Bolts Nuts Flat and Lock Washers Kits 304 Stainless Steel Fully Thread Hexagon Bolts 10 Sets

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Hillman 5mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

Hillman 

5mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

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for pricing and availability

5.0
2
Hillman 6mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

Hillman 

6mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

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4.9
23
Hillman 10mm x 30mm Zinc-Plated Fine Thread Hex Bolt

Hillman 

10mm x 30mm Zinc-Plated Fine Thread Hex Bolt

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for pricing and availability

3.8
4
Hillman 8mm x 30mm Zinc-Plated Coarse Thread Hex Bolt (2-Count)

Hillman 

8mm x 30mm Zinc-Plated Coarse Thread Hex Bolt (2-Count)

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for pricing and availability

5.0
2
Hillman 4mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

Hillman 

4mm x 30mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

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5.0
5
Hillman 7mm x 30mm Zinc-Plated Fine Thread Hex Bolt (2-Count)

Hillman 

7mm x 30mm Zinc-Plated Fine Thread Hex Bolt (2-Count)

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4.6
5
Hillman 8mm x 30mm Zinc-Plated Fine Thread Hex Bolt (2-Count)

Hillman 

8mm x 30mm Zinc-Plated Fine Thread Hex Bolt (2-Count)

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for pricing and availability

4.6
24
Unique Bargains 10pcs Flanged Hex Head Bolts M12 x 30mm 304 Stainless Steel External Hex Drive Screws Metric Fully Threaded Screw for Furniture Car DIY Project [Silver Tone]

Unique Bargains 

10pcs Flanged Hex Head Bolts M12 x 30mm 304 Stainless Steel External Hex Drive Screws Metric Fully Threaded Screw for Furniture Car DIY Project [Silver Tone]

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Unique Bargains M6 x 30mm Hex Head Screws Bolts Nuts Flat and Lock Washers Kits 304 Stainless Steel Fully Thread Hexagon Bolts 6 Sets

Unique Bargains 

M6 x 30mm Hex Head Screws Bolts Nuts Flat and Lock Washers Kits 304 Stainless Steel Fully Thread Hexagon Bolts 6 Sets

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Unique Bargains M8 x 30mm Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Appliances

Unique Bargains 

M8 x 30mm Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Appliances

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Unique Bargains M14-2x30mm Hex Serrated Flange Bolts 10.9 Grade Carbon Steel Screws 6pcs
Multiple Options Available

Unique Bargains 

M14-2x30mm Hex Serrated Flange Bolts 10.9 Grade Carbon Steel Screws 6pcs

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Unique Bargains M8 x 30mm Flanged Hex Head Bolts 10pcs Zinc-Plated Carbon Steel Flange Hexagon Screws with Nuts Fully Threaded for Machinery Industry Home Appliances
Multiple Options Available

Unique Bargains 

M8 x 30mm Flanged Hex Head Bolts 10pcs Zinc-Plated Carbon Steel Flange Hexagon Screws with Nuts Fully Threaded for Machinery Industry Home Appliances

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Unique Bargains M5 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Black

Unique Bargains 

M5 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Black

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Unique Bargains M5 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Silver
Color: Silver

Unique Bargains 

M5 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Silver

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Unique Bargains M6x30mm Phillips Hex Head Flange Bolts 20pcs 304 Stainless Steel Hexagon Phillips Flange Head Hex Bolts Machine Screws

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M6x30mm Phillips Hex Head Flange Bolts 20pcs 304 Stainless Steel Hexagon Phillips Flange Head Hex Bolts Machine Screws

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Unique Bargains M8 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Black
Color: Black

Unique Bargains 

M8 x 30mm Phillips Flanged Hex Head Bolts 10pcs 304 Stainless Steel Flange Hexagon Screws with Nuts Flat and Lock Washers Fully Threaded for Machinery Industry Home Black

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Unique Bargains M10x30mm Hex Head Left Hand Screw Bolts Fastener Carbon Steel Black 2pcs

Unique Bargains 

M10x30mm Hex Head Left Hand Screw Bolts Fastener Carbon Steel Black 2pcs

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1/2-in x 1-1/2-in Stainless Coarse Thread Hex Bolt

Hillman   1/2-in x 1-1/2-in Stainless Coarse Thread Hex Bolt

Stainless Steel Hex Bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Be sure to pre-drill any holes and to use washers and nuts of a similar grade and finish.

5/16-in x 4-in Stainless Coarse Thread Hex Bolt

Hillman   5/16-in x 4-in Stainless Coarse Thread Hex Bolt

Stainless Steel Hex Bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Be sure to pre-drill any holes and to use washers and nuts of a similar grade and finish.

1/4-in x 1-in Galvanized Coarse Thread Hex Bolt

Hillman   1/4-in x 1-in Galvanized Coarse Thread Hex Bolt

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

3/8-in x 3-1/2-in Zinc-Plated Coarse Thread Hex Bolt

Hillman   3/8-in x 3-1/2-in Zinc-Plated Coarse Thread Hex Bolt

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

1/4-in x 2-in Stainless Coarse Thread Hex Bolt (3-Count)

Hillman   1/4-in x 2-in Stainless Coarse Thread Hex Bolt (3-Count)

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

5/16-in x 1-1/2-in Stainless Coarse Thread Hex Bolt

Hillman   5/16-in x 1-1/2-in Stainless Coarse Thread Hex Bolt

Stainless Steel Hex Bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Be sure to pre-drill any holes and to use washers and nuts of a similar grade and finish.

5/16-in x 1-1/2-in Zinc-Plated Coarse Thread Hex Bolt (4-Count)

Hillman   5/16-in x 1-1/2-in Zinc-Plated Coarse Thread Hex Bolt (4-Count)

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

1/2-in x 2-in Yellow Dichromate Coarse Thread Hex Bolt

Hillman   1/2-in x 2-in Yellow Dichromate Coarse Thread Hex Bolt

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

6mm x 40mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

Hillman   6mm x 40mm Zinc-Plated Fine Thread Hex Bolt (4-Count)

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

3/4-in x 3-in Yellow Dichromate Coarse Thread Hex Bolt

Hillman   3/4-in x 3-in Yellow Dichromate Coarse Thread Hex Bolt

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

1/4-in x 6-in Galvanized Coarse Thread Hex Bolt -Count

Hillman   1/4-in x 6-in Galvanized Coarse Thread Hex Bolt -Count

Hillman hex bolts are designed to deliver strong, dependable fastening for a wide range of construction, repair, and assembly applications. Engineered to fasten facing materials securely, these machine bolts help reduce shear movement while maintaining a stable and long-lasting connection. The hexagonal head design allows for easy installation using a wrench or socket, ensuring efficient tightening and consistent performance. Manufactured from Grade 2 steel, these bolts are ideal for most general-purpose fastening needs, offering a balance of strength and versatility. The galvanized finish provides enhanced corrosion resistance, making them suitable for outdoor environments and applications exposed to moisture, weather, and varying conditions. The partially threaded shank improves clamping force between materials, allowing for a tighter grip and better joint stability. These hex bolts are commonly used in wood-to-wood, wood-to-metal, and metal-to-metal applications, including construction, structural assemblies, and repair work. For optimal performance, pre-drilling is recommended, and bolts should be used with compatible nuts and washers of the same thread pitch, grade, and finish. Backed by Hillman’s trusted engineering and quality standards, these hex bolts deliver consistent performance and durability. Whether used by professionals or DIY users, they provide a reliable fastening solution for a variety of indoor and outdoor applications.

5/8-in x 10-in Zinc-plated Coarse Thread Hex Bolt -Count

Hillman   5/8-in x 10-in Zinc-plated Coarse Thread Hex Bolt -Count

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

5/8-in x 8-in Zinc-plated Coarse Thread Hex Bolt -Count

Hillman   5/8-in x 8-in Zinc-plated Coarse Thread Hex Bolt -Count

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

1/4-in x 5-1/2-in Zinc-plated Coarse Thread Hex Bolt -Count

Hillman   1/4-in x 5-1/2-in Zinc-plated Coarse Thread Hex Bolt -Count

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

5/16-in x 8-in Zinc-plated Coarse Thread Hex Bolt -Count

Hillman   5/16-in x 8-in Zinc-plated Coarse Thread Hex Bolt -Count

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

3/4-in x 6-in Zinc-plated Coarse Thread Hex Bolt

Hillman   3/4-in x 6-in Zinc-plated Coarse Thread Hex Bolt

Grade 5 Hex Cap Screws are bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. A common feature on hex cap screws is a washer surface directly under the head which creates a better seal.

Hex Head Bolts for Sturdy Construction

Whether you're building a bookshelf or working on a construction job, stainless steel hex bolts can be very beneficial due to their sturdy hold. These bolts are also a breeze to install. Lowe's has a variety of lengths and threads to choose from.


These bolts can be gripped from virtually any angle and can even be loosened by hand. This makes for a smooth installation or build. A hex head bolt can be installed using many tools due to its hexagonal shape, which allows for greater torque or twisting force. This is why it's ideal for projects that require a strong hold and sturdiness.


When looking at a hex head bolt, you'll see that there are two major types. Fully threaded hex bolts have a machine thread that runs down the entirety of the bolt, while partially threaded hex bolts have a space between the head of the bolt and the threading. It's important to note the type that you'll need because the grip of the bolt will differ depending on the type of hex bolt. For instance, a partially threaded hex bolt is ideal for projects that require alignment and resistance while the fully threaded hex bolt is used for grip strength rather than holding force.