Set Screws

Set screws are threaded fastening components used by maintenance, assembly, repair, and equipment-building teams to secure components, clamp workpieces, or provide a specified contact style in an assembly. This category includes socket-driven options with cup points, flat points, full ball points, movable flat balls, and safety-twist flat-ball designs for commercial fastening needs.

Product Display:
Helpful Buying Guide

How to Choose Set Screws for Your Assembly

Start by matching the thread size, thread length, and contact style to the threaded component and fastening requirement. The available set screws use Allen or hex-key drives and include point and ball-contact designs for securing, clamping, supporting, and positioning workpieces.

Visual Guide

Popular examples in this category

1/4-20 x 3/8 Coarse-Thread Flat-Point Socket Set Screws, 5,000-Pack1/4-20 x 3/8 Coarse-Thread Flat-Point Socket Set Screws, 5,000-PackWBB414306M10 x 1.5 Flat Ball Safety-Twist Set Screw, 25mm Thread LengthM10 x 1.5 Flat Ball Safety-Twist Set Screw, 25mm Thread LengthWBB2185442M8 x 1.25 x 16 mm Cup Point Socket Set Screws, Steel, Black Oxide, 100-PackM8 x 1.25 x 16 mm Cup Point Socket Set Screws, Steel, Black Oxide, 100-PackWBB2291027M10 x 1.5 x 40 mm Cup Point Socket Set Screw, Steel, Black Oxide, 50-PackM10 x 1.5 x 40 mm Cup Point Socket Set Screw, Steel, Black Oxide, 50-PackWBB2290970
Use Cases

Secure, clamp, or support components

Cup point and flat point set screws support component-securing needs. Ball-contact options are suited to assemblies that require ball-point contact, while movable flat-ball designs can clamp or support non-parallel surfaces.

How to Choose

Match thread, length, and contact

Confirm the required thread designation and thread length first. Then select the contact style—cup point, flat point, full ball point, flat ball, or serrated flat ball—based on the assembly requirement.

Applications

Built for maintenance and assembly work

These set screws are represented for maintenance, assembly, repair, and equipment-building tasks, including repeated installation work and component positioning.

Additional Info

Consider drive and package quantity

The represented products use socket or hex-key drives for installation and adjustment. Package quantities include 50, 100, and 5,000 pieces, while several specialty ball-contact options are listed individually.

5Contact styles

Cup, flat, full ball, flat ball, and serrated flat ball.

9°Maximum rotation

For represented safety-twist ball designs.

50–5,000Pack quantities

Available across represented packaged options.

Allen/hexDrive style

Used for installation and adjustment.

Comparison Guide

Compare Set Screw Contact Types

Use the contact style along with the required thread and length to narrow the selection.

Set screw typeContact and positioning characteristicsSelection considerations
Cup pointSpecified point style for component-securing applications.Match the required thread size, length, and cup-point requirement.
Flat pointSupports applications where protrusion above the mating surface is not acceptable.Choose when a flat-point design is required.
Ball-contact stylesIncludes full ball point, movable flat ball, and safety-twist flat-ball options; movable flat balls accommodate non-parallel surfaces, while safety-twist designs limit rotation to 9 degrees.Choose the required ball shape, contact face, and positioning behavior.
Planning Guide

Plan the right fit before choosing

Choose the contact style

Select a point or ball design that fits the workpiece

The contact end is a primary selection factor. Cup point set screws are represented for securing components in place, and a flat-point option is available where protrusion above the mating surface is unacceptable. Full ball point screws provide ball-point contact. Flat-ball designs provide a movable, flat contact face for non-parallel surfaces and can help avoid workpiece indentation.

  • Cup point for specified component-securing requirements
  • Flat point where above-surface protrusion is not acceptable
  • Full ball point where ball-point contact is required
  • Movable flat ball for clamping or supporting non-parallel surfaces
Plan fit and adjustment

Verify thread compatibility and threaded reach

Match the screw to the required thread size and length for the assembly. Listed thread options include metric M4 x 0.7, M6 x 1.0, M8 x 1.25, M10 x 1.5 and inch-based 8-32, 10-24, and 1/4-20. Thread lengths and screw lengths vary across the represented products.

  • Match the thread designation to the compatible threaded component
  • Check the listed thread length or screw length for fit planning
  • Use an Allen or hex key for socket-driven installation and adjustment
  • For safety-twist styles, the ball rotation is limited to a maximum of 9 degrees
Choose quantity for the job

Balance stocking needs with installation volume

Package counts in the category range from 50 and 100 pieces to a 5,000-piece bulk pack. Choose a count that fits ongoing maintenance, assembly, repeat installation, or high-quantity fastening needs.

  • 50-piece pack for stock or repeated installation work
  • 100-piece packs for maintenance and assembly supply
  • 5,000-piece pack for high-quantity fastening needs
FAQ

Common questions before buying

What drive type do these set screws use?

The represented set screws use a socket, Allen-key, or hex-key drive for installation and adjustment.

What is the difference between a full ball point and a flat ball?

A full ball point provides ball-point contact. A movable flat ball has a flat contact face and can accommodate non-parallel surfaces during clamping or support.

What does the safety-twist feature do?

On the represented safety-twist designs, it limits ball rotation to a maximum of 9 degrees to help maintain clamping contact and controlled positioning.

Which package quantities are available?

Represented packaged options include 50-piece, 100-piece, and 5,000-piece counts.

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