Webcam Tripod Screw Standards: UNC vs Metric Threads

The 1/4-inch thread standard

When you shop for a webcam, you'll often see a tripod mount described as a "1/4-inch thread." This is the industry-standard size for camera tripods and mounts, and it's the same thread used on most DSLRs and mirrorless cameras. The Elgato Facecam Pro, for example, advertises a "Robust mount" that can be attached to a monitor or a Multi Mount via the industry standard 1/4-inch thread. For more on tripod screw compatibility, see tripod screw size.

The 1/4-inch size refers to the diameter of the screw. The thread pitch, or how many threads per inch, is what defines the specific standard. In the camera world, the 1/4-inch thread is commonly paired with a coarse pitch, known as UNC (Unified National Coarse). However, the term "UNC" is not always printed on the packaging; it's simply the name for the thread standard that most tripod mounts use.

For compatibility, you can assume that any webcam or tripod that mentions a 1/4-inch thread is using the standard UNC pattern. This ensures that a wide range of tripods, monopods, and mounts will work with your webcam without needing an adapter.

• 1/4-inch thread is the most common webcam mounting size.
• The industry standard is the same as that used by camera tripods.
• Look for "1/4-inch" in the specs to ensure compatibility.

UNC vs metric threads: what's the difference?

Thread standards fall into two broad families: imperial (inch-based) and metric (millimeter-based). The 1/4-inch thread is an imperial size, and the standard pitch for camera mounts is called UNC. Metric threads are used in many consumer electronics, but they are less common on camera tripods and webcam mounting points.

The main difference between UNC and metric lies in the measurement system. UNC threads are defined by threads per inch, while metric threads are defined by the distance between threads in millimeters. A 1/4-20 UNC thread has 20 threads per inch, but we won't get into exact numbers here because they vary by manufacturer. The important thing is that a 1/4-inch tripod thread is not the same as a metric 6mm or 1/4-inch metric bolt.

When you buy a tripod or webcam mount, you'll see either "1/4-inch" (imperial) or "M6" (metric) as common sizes. The 1/4-inch UNC is the de facto standard for camera equipment, so you're safe with that. If you have a device with a metric thread, you can often use an adapter to fit it onto a standard tripod. For a wide selection of compatible webcams, check out best 1080p webcams.

Checking your webcam's mount thread

Before you buy a tripod or mount, look at the bottom of your webcam. If you see a small threaded hole, it's likely the 1/4-inch standard. You can test it with a standard camera tripod screw. If it fits, you're ready to go.

If your webcam doesn't have a visible thread, it might rely on a clip mount or a proprietary base. Some webcams, like the OBSBOT Tiny 2, come with a built-in mount that can be used on a monitor or a tripod, but the mounting mechanism isn't always a standard 1/4-inch thread. In those cases, check the manual or the product page for specifics.

Most webcams that support tripod mounting will state it in the specs. Look for phrases like "tripod mount" or "1/4-inch thread" in the product description. If you're unsure, contact the manufacturer or check the online support documentation. For a breakdown of mounting options, see mounting stand options.

Adapters and alternatives

What if your webcam has a metric thread or a non-standard mount? You don't have to replace the webcam. Adapters are available that convert metric threads to 1/4-inch UNC. These small metal or plastic adapters screw into the webcam's base and provide a standard 1/4-inch thread for your tripod.

Another option is to use a mounting clamp with a universal joint. These clamps can grip the webcam's body and attach to a tripod or monitor arm, bypassing the need for a threaded hole altogether. However, this is less secure and might not work well for heavier webcams.

If you're buying a new webcam, consider one with a standard 1/4-inch thread to simplify your setup. Many premium webcams, including the Elgato Facecam Pro, include this thread, making them easy to mount on any tripod. For streaming or video calls, a stable mount is essential, and a standard thread gives you the most flexibility.

Choosing a webcam with the right mount

When shopping for a webcam, think about the mount type that suits your setup. If you plan to use a tripod, make sure the webcam has a 1/4-inch thread. If you prefer a clip mount, check that the clip is wide enough for your monitor. Some webcams offer both options, which is the most flexible.

For streaming and content creation, a tripod mount is often the best choice because it lets you position the camera at eye level and tilt it as needed. A 1/4-inch thread ensures you can use any standard tripod, from budget models to professional ones. For video conferencing, a clip mount might be more convenient, but a tripod can still improve your framing.

Look at our buying guides for webcams with strong mounting options. For example, the best 4K webcams include many models with standard threads. The best webcams for streaming also emphasize mount flexibility. If you're working from home, check the best webcams for working from home for recommendations that fit both monitor and tripod setups.

• Confirm the thread size before buying.
• Choose a webcam that includes both a clip and a 1/4-inch mount if possible.
• Consider using an adapter for non-standard threads.

Why UVC and USB compatibility matter alongside the mount

Once you've sorted out the physical mount, your webcam also needs to work with your computer. Many modern webcams are UVC (USB Video Class) compliant, which means they work without additional drivers on Windows, as explained in Microsoft's UVC driver overview. This is a huge advantage because you can plug in your webcam, mount it on a tripod, and start using it immediately.

The USB connection type also affects your setup. USB Type-C is becoming the standard for many webcams, thanks to its small connector and high data transfer rates. The USB Implementers Forum (USB-IF) maintains the USB Type-C specification, and many webcams now use USB-C ports for both power and video. When you buy a webcam, check whether it uses USB-C or USB-A, and make sure your computer has the right port. A USB-C to USB-A adapter can help if needed.

For video conferencing, teams meeting rooms often use certified peripherals that meet high standards for audio and video quality, as listed in Microsoft Teams Rooms certification. While that certification isn't about mounting threads, it's another factor to consider if you're equipping a conference room: you'll want a webcam that is both well-supported and easily mounted.

What to pick for your use

Questions

What does 1/4-inch thread mean on a webcam?

It's the standard size for the screw hole on the bottom of the camera. It matches the screw on most camera tripods, ensuring a universal fit. For a list of compatible webcams, see the best 4K webcams.

Is a 1/4-inch thread the same as UNC?

Yes, the 1/4-inch thread used on cameras and webcams is typically UNC (Unified National Coarse). The term UNC describes the thread pitch, but you rarely need to specify it because it's the default for tripods.

What if my webcam has a metric thread?

You can often use an adapter that converts the metric size to 1/4-inch UNC. These adapters are inexpensive and easy to install. Learn more about mount options that can work with adapters.

Do all webcams have a tripod thread?

No. Some webcams only come with a clip mount or a proprietary base. Always check the specifications for 'tripod mount' or '1/4-inch thread' before purchasing.