We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is a Triangle Screwdriver?

By Jeffrey L. Callicott
Updated Feb 04, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A triangle screwdriver is a tool used in the setting and removal of specific, rarely used types of screws and bolts commonly referred to as triangle recess or TP3 screws. These fasteners are a type of security screw found in certain kinds of toys and battery packs. The head of a TP3 screw has an indented triangle with slightly rounded sides and, in turn, the tip of a triangle screwdriver is designed to securely fit the TP3 screw head. The rounded sides help prevent turning of the screw without the correct driver.

Triangle recess screws are security screws, designed to be challenging to remove or install without a triangle screwdriver. It is possible — but difficult — to attempt to work with TP3 screws using flathead or hex-head screwdrivers, but doing so can often result in “camming out” or slipping out of the driver when too much torque is applied. This usually results in damage to the screws, the driver or both, after which removing or installing such a security screw becomes even more of a challenge. A triangle screwdriver is necessary to reliably install and remove TP3 screws without slippage.

Security screws, including TP3 screws, are used in situations in which limited access is needed or desired. Such screws are commonly used when a panel has no user serviceable parts, or a manufacturer simply wishes to restrict access. This is usually accomplished through the use of screws with nontraditional heads, because their relative rarity and the similarly scarce drivers prevent a lot of would-be handymen from being able to work with them. A triangular screwdriver is similarly difficult to find, though the screwdrivers are available in sizes to match the TP3 fasteners.

Acquiring a triangle screwdriver is somewhat difficult, because it is among the rarer types of security screwdrivers. Most home improvement centers and local hardware stores do not carry them, although they can be obtained from online retailers that specialize in security fasteners. Both the screws and the drivers tend to carry a price premium higher than that of the more standard types. When available, there are a few different sizes of triangle screwdriver available that mirror the more common types of screwdrivers; typically, these are the #8 and #10 sizes.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.