Cap Screws

Tamper-resistant cap screws are security fasteners used to secure components and assemblies where removal with ordinary screwdrivers should be deterred. Commonly selected by commercial buyers, facility teams, installers, and maintenance professionals, these cap screws use specialized drives for controlled-access fastening applications.

Product Display:
Helpful Buying Guide

Choose Tamper-Resistant Cap Screws for Controlled-Access Fastening

This selection focuses on security cap screws with specialized tamper-resistant drives, 18-8 stainless steel construction, and button or flat socket head styles. Compare the required thread size, length, head profile, pack quantity, and need for a matching driver or bit before ordering.

Visual Guide

Popular examples in this category

Tamper-Resistant Button Socket Head Cap Screws, 3/8-16 x 1-3/4 in., 18-8 Stainless Steel, 25-PackTamper-Resistant Button Socket Head Cap Screws, 3/8-16 x 1-3/4 in., 18-8 Stainless Steel, 25-PackWBB21836201/2-13 x 1-1/2 in. Button Socket Head Security Cap Screws, 18-8 Stainless Steel, 10-Pack1/2-13 x 1-1/2 in. Button Socket Head Security Cap Screws, 18-8 Stainless Steel, 10-PackWBB21836493/8-16 x 1 in. Tamper-Resistant Flat Socket Head Cap Screws, 18-8 Stainless Steel, 25-Pack3/8-16 x 1 in. Tamper-Resistant Flat Socket Head Cap Screws, 18-8 Stainless Steel, 25-PackWBB2183686Tamper-Resistant Button Socket Head Cap Screws, 5/16-18 x 2 in., 25-PackTamper-Resistant Button Socket Head Cap Screws, 5/16-18 x 2 in., 25-PackWBB2184156
Use Cases

Secure components against ordinary screwdriver removal

Use these cap screws when assemblies or components need added resistance to unauthorized fastener removal. The specialized drive designs help deter removal with ordinary screwdrivers.

How to Choose

Match thread, length, head style, and driver needs

Start with the required inch or metric thread size and screw length. Then select a button or flat socket head format that matches the fastening requirement, and confirm that the proper matching driver or bit is available.

Applications

Support maintenance, installation, and replacement work

These fasteners are suited to commercial installation, facility maintenance, assembly work, replacement needs, and stocking for future fastening requirements where controlled access is important.

Additional Info

Choose a practical package quantity

Available package quantities include 10, 25, and 100 pieces. Smaller packs can suit planned work, while 100-count packs can support larger installations, replacements, or inventory needs.

2Head styles

Button socket head and flat socket head options are represented.

10, 25, 100Pack counts

Choose from the package quantities represented in the selection.

18-8Stainless steel

The listed cap screws feature 18-8 stainless steel construction.

Inch + metricSizing systems

The selection includes both inch-thread and metric-thread options.

Comparison Guide

Compare the Cap Screw Options

Use the head style, sizing system, and available package quantities to narrow the selection for the specified fastening requirement.

Option typeSizes representedPack quantities represented
Button socket head tamper-resistant cap screws10-32, 1/4-20, 5/16-18, 3/8-16, 1/2-13; M3, M4, M610, 25, and 100 pieces
Flat socket head tamper-resistant cap screws10-32 x 1 in.; 3/8-16 x 1 in.25 and 100 pieces
Security-drive cap screws overallInch and metric thread sizes with varied lengths10, 25, and 100 pieces
Planning Guide

Plan the right fit before choosing

Start with fit

Verify the thread size and length required by the assembly

The available range includes inch and metric sizes. Select the size that matches the existing fastening requirement rather than substituting a different thread or length.

  • Inch examples include 10-32, 1/4-20, 5/16-18, 3/8-16, and 1/2-13.
  • Metric examples include M3 x 0.5, M4 x 0.7, and M6 x 1.0.
  • Lengths represented range from 12 mm to 3-1/2 in. across the listed options.
Select the head and drive

Choose the head profile and plan for the required tool

Button socket head options provide the listed button-head configuration, while flat socket head options provide the specified flat head style. All listed products use a tamper-resistant or security drive designed to help deter ordinary screwdriver removal.

  • Button socket head styles are represented in both inch and metric sizes.
  • Flat socket head styles are represented in 3/8-16 x 1 in. and 10-32 x 1 in. options.
  • Some selections specifically require a matching driver or bit for installation and removal.
  • Positive drive engagement is described for several options to support torque transmission and help resist cam-out.
Plan the purchase quantity

Match pack count to the scope of the job

Pack sizes vary by selected cap screw. Consider whether the purchase is for a small planned installation, a larger project, replacement work, or stocked inventory.

  • 10-piece packs are available for selected 1/2-13 button socket head screws.
  • 25-piece packs are available in selected 5/16-18 and 3/8-16 sizes.
  • 100-piece packs are available in selected 10-32, 1/4-20, M3, M4, and M6 sizes.
FAQ

Common questions before buying

What makes these cap screws tamper-resistant?

They use specialized tamper-resistant or security drive designs that help deter removal with ordinary screwdrivers.

Do these cap screws require a special tool?

Several listed options specify that a matching driver or bit is required for proper installation and removal.

What head styles are available?

The selection includes button socket head and flat socket head cap screws.

Are both metric and inch sizes available?

Yes. The listed products include inch-thread sizes as well as metric M3, M4, and M6 options.

!