Spanner Drive Screws

Spanner drive screws are security fasteners designed to help deter removal with ordinary screwdrivers. They are used by maintenance and installation teams for installed components, assemblies, and sheet metal fastening where controlled access to the fastener is important. The range includes machine screws and sheet metal screws in flat, pan, and oval head styles.

Product Display:
Helpful Buying Guide

Buying Guide: Spanner Drive Screws

Choose a spanner drive screw by first matching the fastener type, size, length, and head profile to the assembly. Each represented option uses a spanner drive that requires a matching driver bit for installation and removal, helping deter removal with ordinary screwdrivers.

Visual Guide

Popular examples in this category

10-24 x 2 in. Flat Spanner Head Security Machine Screws, 100-Pack10-24 x 2 in. Flat Spanner Head Security Machine Screws, 100-PackWBB22150998-32 x 3/8 in. Pan Head Spanner Drive Security Machine Screws, 100-Pack8-32 x 3/8 in. Pan Head Spanner Drive Security Machine Screws, 100-PackWBB221512410-32 x 2-1/2 in. Flat Head Spanner Drive Security Machine Screws, 18-8 Stainless Steel, 100-Pack10-32 x 2-1/2 in. Flat Head Spanner Drive Security Machine Screws, 18-8 Stainless Steel, 100-PackWBB221512510-24 x 1-3/4 in. Pan Head Spanner Drive Security Machine Screws, 100-Pack10-24 x 1-3/4 in. Pan Head Spanner Drive Security Machine Screws, 100-PackWBB2215213
Use Cases

Added fastening security

Use spanner drive screws where installed components, assemblies, or sheet metal need added resistance to removal with ordinary screwdrivers.

How to Choose

Match type, size, and head

Select machine screws or sheet metal screws first, then compare the listed thread or screw size, length, and flat, pan, or oval head profile.

Applications

Installation and maintenance work

The represented screws are intended for maintenance, installation, replacement, stocking, and multi-fastener project needs.

Additional Info

Use the matching bit

A matching driver bit is required for installation or removal and supports positive tool engagement with less pressure and reduced slipping.

2Fastener types

Machine screws and sheet metal screws are represented.

3Head styles

Flat, pan, and oval head options are represented.

100Screws per pack

The represented products are sold in 100-piece or 100-count packs.

18-8Stainless steel

Most represented options specify 18-8 stainless steel construction.

Comparison Guide

Compare Spanner Drive Screw Types

Use this overview to compare the real fastener types and head styles represented in the category.

Screw typeHead styles representedRepresented sizes and lengths
Machine screwsFlat, pan, oval8-32 x 3/8 in.; 8-32 x 2 in.; 10-24 x 1-3/4 in.; 10-24 x 2 in.; 10-32 x 2-1/2 in.; 1/4-20 x 3/4 in.; M4 x 0.7 x 40 mm
Sheet metal screwsFlat, pan#4AB x 3/8 in.; #6 x 1/2 in.; #8AB x 1-1/2 in.; #10 x 1 in.; #14AB x 3/4 in.
Spanner drive featureAvailable across the represented head stylesRequires a matching driver bit and helps deter removal with ordinary screwdrivers.
Planning Guide

Plan the right fit before choosing

Start with the fastener type

Choose machine screws or sheet metal screws for the work

The selection includes both security machine screws and security sheet metal screws. Machine screw options are represented in 8-32, 10-24, 10-32, 1/4-20, and M4 x 0.7 sizes. Sheet metal options are represented in #4AB, #6, #8AB, #10, and #14AB sizes.

  • Use the listed machine screw thread designation when matching a machine screw application.
  • Choose a sheet metal screw option for the represented sheet metal fastening applications.
  • Confirm the listed length needed for the installation, from 3/8 in. to 2-1/2 in. among inch-based options, or 40 mm for the metric machine screw.
Compare head profiles

Select the finish and profile your assembly calls for

Flat head screws provide a flush installation in metal surfaces; selected flat head options can also be countersunk in softer materials. Pan head screws have a low-profile head with a large diameter and high-edged crown. An oval head machine screw is also represented for assemblies requiring that specified head style.

  • Choose flat head when a clean, flush-mounted appearance is needed.
  • Choose pan head for its low-profile, large-diameter, high-edged crown design.
  • Choose oval head when the assembly calls for that head style.
Plan for installation and quantity

Ensure the correct driver bit is available

Spanner drives require a matching driver bit and are designed to help prevent removal with ordinary screwdrivers. The represented products are supplied in 100-piece or 100-count packs, providing multiple screws for installation, replacement, maintenance, or project work.

  • Match the driver bit to the spanner drive before installation or removal.
  • Use the matching bit for positive engagement and reduced slipping.
  • Plan quantities around the 100-piece or 100-count pack format.
FAQ

Common questions before buying

What is a spanner drive screw?

It is a security fastener with a spanner drive designed to help deter removal with ordinary screwdrivers.

Do spanner drive screws need a special bit?

Yes. The represented screws require a matching driver bit for installation and removal.

What head styles are available?

The represented selection includes flat head, pan head, and oval head screws.

What is the difference between the machine screw and sheet metal screw options?

The category includes both machine screws and sheet metal screws, with different listed sizes, lengths, and head profiles.

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