Hex Head Cap Screws

Hex head cap screws are threaded fasteners used to join and secure compatible components in maintenance, assembly, repair, and construction work. They install in a matching tapped hole or with a corresponding threaded nut, and their hex heads support wrench- or socket-driven tightening. Available examples include inch and metric thread sizes, varied lengths, steel and stainless steel constructions, and multi-piece pack quantities for recurring commercial fastening needs.

Helpful Buying Guide

Hex Head Cap Screw Buying Guide

Choose hex head cap screws by first matching the required thread system, diameter, pitch, and length to the assembly. Then compare the stated grade, material, finish, installation method, and pack quantity to fit the work at hand.

Visual Guide

Popular examples in this category

Use Cases

Support routine fastening work

Hex head cap screws are represented for maintenance, assembly, repair, and construction tasks where compatible components must be joined with threaded fasteners.

How to Choose

Match every size detail

Confirm whether the application requires an inch UNC thread or a metric thread, then match the stated diameter, thread pitch or thread count, and screw length.

Applications

Use with compatible threads

The represented screws can be installed in an internally tapped hole or used with a matching threaded nut, depending on the assembly.

Additional Information

Compare material, grade, and quantity

Available examples include stainless steel, carbon steel, medium carbon steel, and steel constructions; stated Grade 5, Grade 8.8, and Class 8.8 options; and packs of 25, 50, or 100.

2Thread systems represented

Examples include UNC inch threads and metric threads.

25–100Pieces per pack

Available example quantities range from 25 to 100 screws.

10–70 mmMetric lengths represented

Examples range from 10 mm to 70 mm long.

1–2-1/2 in.Inch lengths represented

Examples range from 1 inch to 2-1/2 inches long.

Comparison Guide

Compare Hex Head Cap Screw Options

Use this overview to narrow choices by thread format, stated construction or designation, and the available example pack quantities.

Option typeRepresentative choicesWhat to compare
UNC inch-thread screws1/4-20, 5/16-18, 3/8-16, and 1/2-13 examplesMatch thread count, diameter, length, stated Grade 5 requirement where applicable, and pack size.
Metric stainless steel screwsM6 x 1.0 examples in 304 stainless steelMatch metric thread pitch and length, including 10 mm and 40 mm examples.
Metric steel screwsM8, M10, M12, and M14 examplesCompare pitch, length, stated Grade 8.8 or Class 8.8 designation where listed, finish where listed, and pack quantity.
Planning Guide

Plan the right fit before choosing

Start with thread compatibility

Choose inch or metric sizing

A screw must match the threaded hole or nut used in the assembly. The available examples span UNC inch sizes such as 1/4-20, 5/16-18, 3/8-16, and 1/2-13, as well as metric sizes including M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.25, and M14 x 1.5.

  • Match the stated diameter and thread designation to the receiving thread.
  • Select the required length, from examples such as 10 mm and 20 mm to 70 mm, or 1 inch to 2-1/2 inches.
  • Do not substitute a different pitch, thread count, or diameter for a matching thread.
Compare fastening requirements

Review stated grade and construction

For applications calling for medium strength and controlled clamp force, the represented Grade 5 screws are identified for those requirements, including higher-load assemblies. Other examples carry a Grade 8.8 or Class 8.8 designation. Material choices represented include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

  • Use the stated grade requirement as a key purchasing checkpoint.
  • Compare stainless steel and steel constructions according to the specified assembly requirement.
  • Some steel examples are identified with clear zinc, zinc-plated, zinc-coated, or Zinc CR+3 finishes.
Plan installation and stocking

Select a practical pack quantity

Hex heads allow tightening and removal with a compatible wrench, socket, or hex-driving tool. For repeated work, choose a pack quantity that aligns with the number of matching fasteners needed for the job or for replenishment.

  • Confirm whether the screw will be used in a tapped hole, with a nut, or either arrangement.
  • Use 25-piece, 50-piece, or 100-piece pack options to support project and stocking needs.
  • Keep matching-size screws together for consistent assembly work.
FAQ

Common questions before buying

What can hex head cap screws be used with?

They can be used with a matching threaded nut or installed in a compatible internally tapped hole.

Are both metric and inch thread sizes represented?

Yes. The examples include UNC inch-thread screws and metric-thread screws.

What materials are represented?

Examples include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

What package quantities are available in the examples?

The represented products include 25-piece, 50-piece, and 100-piece packages.

Helpful Buying Guide

Hex Head Cap Screw Buying Guide

Choose hex head cap screws by first matching the required thread system, diameter, pitch, and length to the assembly. Then compare the stated grade, material, finish, installation method, and pack quantity to fit the work at hand.

Visual Guide

Popular examples in this category

Use Cases

Support routine fastening work

Hex head cap screws are represented for maintenance, assembly, repair, and construction tasks where compatible components must be joined with threaded fasteners.

How to Choose

Match every size detail

Confirm whether the application requires an inch UNC thread or a metric thread, then match the stated diameter, thread pitch or thread count, and screw length.

Applications

Use with compatible threads

The represented screws can be installed in an internally tapped hole or used with a matching threaded nut, depending on the assembly.

Additional Information

Compare material, grade, and quantity

Available examples include stainless steel, carbon steel, medium carbon steel, and steel constructions; stated Grade 5, Grade 8.8, and Class 8.8 options; and packs of 25, 50, or 100.

2Thread systems represented

Examples include UNC inch threads and metric threads.

25–100Pieces per pack

Available example quantities range from 25 to 100 screws.

10–70 mmMetric lengths represented

Examples range from 10 mm to 70 mm long.

1–2-1/2 in.Inch lengths represented

Examples range from 1 inch to 2-1/2 inches long.

Comparison Guide

Compare Hex Head Cap Screw Options

Use this overview to narrow choices by thread format, stated construction or designation, and the available example pack quantities.

Option typeRepresentative choicesWhat to compare
UNC inch-thread screws1/4-20, 5/16-18, 3/8-16, and 1/2-13 examplesMatch thread count, diameter, length, stated Grade 5 requirement where applicable, and pack size.
Metric stainless steel screwsM6 x 1.0 examples in 304 stainless steelMatch metric thread pitch and length, including 10 mm and 40 mm examples.
Metric steel screwsM8, M10, M12, and M14 examplesCompare pitch, length, stated Grade 8.8 or Class 8.8 designation where listed, finish where listed, and pack quantity.
Planning Guide

Plan the right fit before choosing

Start with thread compatibility

Choose inch or metric sizing

A screw must match the threaded hole or nut used in the assembly. The available examples span UNC inch sizes such as 1/4-20, 5/16-18, 3/8-16, and 1/2-13, as well as metric sizes including M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.25, and M14 x 1.5.

  • Match the stated diameter and thread designation to the receiving thread.
  • Select the required length, from examples such as 10 mm and 20 mm to 70 mm, or 1 inch to 2-1/2 inches.
  • Do not substitute a different pitch, thread count, or diameter for a matching thread.
Compare fastening requirements

Review stated grade and construction

For applications calling for medium strength and controlled clamp force, the represented Grade 5 screws are identified for those requirements, including higher-load assemblies. Other examples carry a Grade 8.8 or Class 8.8 designation. Material choices represented include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

  • Use the stated grade requirement as a key purchasing checkpoint.
  • Compare stainless steel and steel constructions according to the specified assembly requirement.
  • Some steel examples are identified with clear zinc, zinc-plated, zinc-coated, or Zinc CR+3 finishes.
Plan installation and stocking

Select a practical pack quantity

Hex heads allow tightening and removal with a compatible wrench, socket, or hex-driving tool. For repeated work, choose a pack quantity that aligns with the number of matching fasteners needed for the job or for replenishment.

  • Confirm whether the screw will be used in a tapped hole, with a nut, or either arrangement.
  • Use 25-piece, 50-piece, or 100-piece pack options to support project and stocking needs.
  • Keep matching-size screws together for consistent assembly work.
FAQ

Common questions before buying

What can hex head cap screws be used with?

They can be used with a matching threaded nut or installed in a compatible internally tapped hole.

Are both metric and inch thread sizes represented?

Yes. The examples include UNC inch-thread screws and metric-thread screws.

What materials are represented?

Examples include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

What package quantities are available in the examples?

The represented products include 25-piece, 50-piece, and 100-piece packages.

Helpful Buying Guide

Hex Head Cap Screw Buying Guide

Choose hex head cap screws by first matching the required thread system, diameter, pitch, and length to the assembly. Then compare the stated grade, material, finish, installation method, and pack quantity to fit the work at hand.

Visual Guide

Popular examples in this category

Use Cases

Support routine fastening work

Hex head cap screws are represented for maintenance, assembly, repair, and construction tasks where compatible components must be joined with threaded fasteners.

How to Choose

Match every size detail

Confirm whether the application requires an inch UNC thread or a metric thread, then match the stated diameter, thread pitch or thread count, and screw length.

Applications

Use with compatible threads

The represented screws can be installed in an internally tapped hole or used with a matching threaded nut, depending on the assembly.

Additional Information

Compare material, grade, and quantity

Available examples include stainless steel, carbon steel, medium carbon steel, and steel constructions; stated Grade 5, Grade 8.8, and Class 8.8 options; and packs of 25, 50, or 100.

2Thread systems represented

Examples include UNC inch threads and metric threads.

25–100Pieces per pack

Available example quantities range from 25 to 100 screws.

10–70 mmMetric lengths represented

Examples range from 10 mm to 70 mm long.

1–2-1/2 in.Inch lengths represented

Examples range from 1 inch to 2-1/2 inches long.

Comparison Guide

Compare Hex Head Cap Screw Options

Use this overview to narrow choices by thread format, stated construction or designation, and the available example pack quantities.

Option typeRepresentative choicesWhat to compare
UNC inch-thread screws1/4-20, 5/16-18, 3/8-16, and 1/2-13 examplesMatch thread count, diameter, length, stated Grade 5 requirement where applicable, and pack size.
Metric stainless steel screwsM6 x 1.0 examples in 304 stainless steelMatch metric thread pitch and length, including 10 mm and 40 mm examples.
Metric steel screwsM8, M10, M12, and M14 examplesCompare pitch, length, stated Grade 8.8 or Class 8.8 designation where listed, finish where listed, and pack quantity.
Planning Guide

Plan the right fit before choosing

Start with thread compatibility

Choose inch or metric sizing

A screw must match the threaded hole or nut used in the assembly. The available examples span UNC inch sizes such as 1/4-20, 5/16-18, 3/8-16, and 1/2-13, as well as metric sizes including M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.25, and M14 x 1.5.

  • Match the stated diameter and thread designation to the receiving thread.
  • Select the required length, from examples such as 10 mm and 20 mm to 70 mm, or 1 inch to 2-1/2 inches.
  • Do not substitute a different pitch, thread count, or diameter for a matching thread.
Compare fastening requirements

Review stated grade and construction

For applications calling for medium strength and controlled clamp force, the represented Grade 5 screws are identified for those requirements, including higher-load assemblies. Other examples carry a Grade 8.8 or Class 8.8 designation. Material choices represented include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

  • Use the stated grade requirement as a key purchasing checkpoint.
  • Compare stainless steel and steel constructions according to the specified assembly requirement.
  • Some steel examples are identified with clear zinc, zinc-plated, zinc-coated, or Zinc CR+3 finishes.
Plan installation and stocking

Select a practical pack quantity

Hex heads allow tightening and removal with a compatible wrench, socket, or hex-driving tool. For repeated work, choose a pack quantity that aligns with the number of matching fasteners needed for the job or for replenishment.

  • Confirm whether the screw will be used in a tapped hole, with a nut, or either arrangement.
  • Use 25-piece, 50-piece, or 100-piece pack options to support project and stocking needs.
  • Keep matching-size screws together for consistent assembly work.
FAQ

Common questions before buying

What can hex head cap screws be used with?

They can be used with a matching threaded nut or installed in a compatible internally tapped hole.

Are both metric and inch thread sizes represented?

Yes. The examples include UNC inch-thread screws and metric-thread screws.

What materials are represented?

Examples include 18-8 stainless steel, 304 stainless steel, carbon steel, medium carbon steel, and steel.

What package quantities are available in the examples?

The represented products include 25-piece, 50-piece, and 100-piece packages.