Hex Bolts

Hex bolts are threaded steel fasteners used to join compatible components in commercial assembly, maintenance, repair, construction, and replacement work. The available options include Grade A steel bolts with UNC threads, hex heads for wrench, socket, or selected pneumatic-tool installation, and a range of lengths for defined fastening requirements.

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Helpful Buying Guide

Hex Bolt Buying Guide

Choose hex bolts by first matching the thread size to the compatible threaded components, then confirming the required bolt length and the quantity needed for the job. The options represented here provide 1/4-20 and 3/8-16 UNC threads, specified Grade A steel construction, zinc CR+3 finishes, and selected package counts for repeat work or supply replenishment.

Visual Guide

Popular examples in this category

3/8-16 x 2-1/2 in. Grade A Steel Zinc CR+3 UNC Hex Bolts, 100-Pack3/8-16 x 2-1/2 in. Grade A Steel Zinc CR+3 UNC Hex Bolts, 100-PackWBB21004891/4-20 x 1 in. Grade A Steel Zinc CR+3 UNC Hex Bolts, Pack of 1001/4-20 x 1 in. Grade A Steel Zinc CR+3 UNC Hex Bolts, Pack of 100WBB21005021/4-20 x 3/4 in. Grade A Fully Threaded Zinc-Coated Steel Hex Bolts, 100-Pack1/4-20 x 3/4 in. Grade A Fully Threaded Zinc-Coated Steel Hex Bolts, 100-PackWBB21004931/4-20 x 1-1/2 in. Grade A Steel Hex Bolt, Zinc CR+3, Pack of 1001/4-20 x 1-1/2 in. Grade A Steel Hex Bolt, Zinc CR+3, Pack of 100WBB2100868
Use Cases

Support repeat fastening work

Hex bolts are suited to component assembly, maintenance, repair, construction, and replacement tasks where a compatible UNC-threaded fastener is required. Packs of matching bolts help teams prepare for projects with multiple fastening points.

How to Choose

Match thread and length first

Confirm whether the application requires 1/4-20 UNC or 3/8-16 UNC threading. Then select the listed length that fits the fastening requirement, from 1/2 inch through 3 inches among the represented options.

Applications

Plan for compatible components

Use these bolts where the specified UNC thread matches the receiving hardware or components. Hex heads allow tightening with a compatible wrench or socket, while selected options also list pneumatic-tool driving.

Additional Info

Compare pack counts and thread coverage

Most represented choices come in packs of 100 for stocking and repeat tasks, while one 3/8-16 x 3 inch option comes in a pack of 50. A 1/4-20 x 3/4 inch option is identified as fully threaded for applications needing extended thread engagement.

2UNC thread sizes

1/4-20 and 3/8-16 options are represented.

7Listed bolt lengths

Lengths range from 1/2 inch to 3 inches.

50 or 100Pack quantities

Selected products are offered in 50- or 100-count packs.

1Fully threaded option

A 1/4-20 x 3/4 inch bolt is identified as fully threaded.

Comparison Guide

Compare the represented hex bolt options

Use thread size, length, and pack quantity to narrow the choices for compatible fastening work.

Thread sizeListed lengthsPack quantity
1/4-20 UNC1/2, 3/4, 1, and 1-1/2 in.100-count packs are represented; one 1/2 in. product does not list a pack quantity
3/8-16 UNC1-1/2, 2-1/2, and 3 in.100-count packs at 1-1/2 and 2-1/2 in.; 50-count pack at 3 in.
Thread coverage1/4-20 x 3/4 in. is fully threadedOther represented options do not state full-thread coverage
Planning Guide

Plan the right fit before choosing

Thread compatibility

Start with the specified UNC thread

Thread compatibility is the primary selection point. The available hex bolts are offered in two UNC thread sizes, so buyers can align the bolt with the threaded components used in the assembly or repair.

  • Choose 1/4-20 UNC for compatible 1/4-20 threaded components.
  • Choose 3/8-16 UNC for compatible 3/8-16 threaded components.
  • Do not substitute thread sizes when the application calls for a defined match.
Length and design

Select the bolt length required for the fastening point

The represented range includes compact and longer bolt lengths for differing fit requirements. Select the stated length based on the application’s defined fastening need. One 1/4-20 x 3/4 inch bolt is fully threaded, providing threads along its full length.

  • 1/4-20 options include 1/2, 3/4, 1, and 1-1/2 inch lengths.
  • 3/8-16 options include 1-1/2, 2-1/2, and 3 inch lengths.
  • Hex heads support driving with a compatible wrench or socket; selected products also list pneumatic-tool use.
Material, finish and quantity

Keep matching bolts available for planned work

The listed bolts use Grade A steel construction and are described with zinc CR+3 or zinc-plated finishes. Package quantity can help buyers plan for project volume, repeat fastening, or shop-stock replenishment.

  • Grade A steel is specified across the represented products.
  • Zinc CR+3 finish is listed on the represented options.
  • Choose 100-count packs for multiple matching bolts; a 50-count pack is available in the 3/8-16 x 3 inch size.
FAQ

Common questions before buying

What thread sizes are available?

The represented hex bolts are available with 1/4-20 UNC and 3/8-16 UNC threads.

What bolt lengths are represented?

Listed lengths range from 1/2 inch to 3 inches, depending on thread size.

Are these bolts fully threaded?

The 1/4-20 x 3/4 inch option is identified as fully threaded. Full-thread coverage is not stated for the other represented products.

What tools can be used with hex heads?

Hex heads can be tightened with a compatible wrench or socket. Selected options also list pneumatic-tool driving.

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