Both designations refer to the exact same dimension of a standard star-shaped Torx drive. A T20 screwdriver or bit will fit perfectly into a TX20 screw head, and vice versa. The variation in naming is entirely down to branding, regional manufacturing standards, and labeling preferences by different tool companies. Why Do Two Different Names Exist?
In the world of fasteners and tools, the terms and TX20 are frequently used interchangeably, but understanding why they both exist—and what they represent—is key to choosing the right tool for your project. The Short Answer: Are They the Same?
What is the you are working on (e.g., decking, automotive repair)?
While you may get away with using a standard T20 driver on a TX20 fastener for a very low-torque, temporary fix, it is never recommended . You will only damage the fastener and your tool. Always use the correct, matching driver for the fastener you are working with.
The original Torx drive system, often referred to by its generic name "star drive," was developed in 1967 by Camcar Textron (now Acument Intellectual Properties). It features a 6-pointed, star-like recess in the screw head that was engineered to outperform Phillips (cross) and slotted drives by virtually eliminating "cam-out"—the annoying and damaging tendency of a driver bit to slip out of the screw head under high torque.
Understanding Torx Drive Sizes: The Difference Between T20 and TX20
Based on the search term, the comparison is almost certainly between : the older Form 2 (often abbreviated as T2 in informal settings or confused due to the "2" designation) and the newer, current-generation Form 3+ (part of the T ech X -generation lineup, often abbreviated as TX ).
Knowing where these screws live helps you identify what is in your hand.
If you can stick the tip of a ballpoint pen into the "valley" of the star, it’s likely a T20. If the valley is so flat that the pen tip bottoms out immediately, it’s a TX20.
This is where the "difference" truly lies. While the T20 and TX20 are mechanically identical in terms of their lobular star shape, the presence or absence of a central hole is the defining characteristic.
Let's confirm this with a closer look at the specifications. As the table below shows, the critical dimensions for a Torx bit of this size are standardized, regardless of whether a manufacturer calls it a T20 or a TX20.
The letter is the universally accepted, shorthand abbreviation for Torx . Torx is the trademarked name for a type of screw drive developed in 1967 by Camcar Textron. When a manufacturer labels a bit as a T20 , they are using the standard, industry-wide shorthand to indicate a size 20 Torx-compatible tool. What Does "TX" Stand For?
Both designations refer to the exact same dimension of a standard star-shaped Torx drive. A T20 screwdriver or bit will fit perfectly into a TX20 screw head, and vice versa. The variation in naming is entirely down to branding, regional manufacturing standards, and labeling preferences by different tool companies. Why Do Two Different Names Exist?
In the world of fasteners and tools, the terms and TX20 are frequently used interchangeably, but understanding why they both exist—and what they represent—is key to choosing the right tool for your project. The Short Answer: Are They the Same?
What is the you are working on (e.g., decking, automotive repair)?
While you may get away with using a standard T20 driver on a TX20 fastener for a very low-torque, temporary fix, it is never recommended . You will only damage the fastener and your tool. Always use the correct, matching driver for the fastener you are working with.
The original Torx drive system, often referred to by its generic name "star drive," was developed in 1967 by Camcar Textron (now Acument Intellectual Properties). It features a 6-pointed, star-like recess in the screw head that was engineered to outperform Phillips (cross) and slotted drives by virtually eliminating "cam-out"—the annoying and damaging tendency of a driver bit to slip out of the screw head under high torque.
Understanding Torx Drive Sizes: The Difference Between T20 and TX20
Based on the search term, the comparison is almost certainly between : the older Form 2 (often abbreviated as T2 in informal settings or confused due to the "2" designation) and the newer, current-generation Form 3+ (part of the T ech X -generation lineup, often abbreviated as TX ).
Knowing where these screws live helps you identify what is in your hand.
If you can stick the tip of a ballpoint pen into the "valley" of the star, it’s likely a T20. If the valley is so flat that the pen tip bottoms out immediately, it’s a TX20.
This is where the "difference" truly lies. While the T20 and TX20 are mechanically identical in terms of their lobular star shape, the presence or absence of a central hole is the defining characteristic.
Let's confirm this with a closer look at the specifications. As the table below shows, the critical dimensions for a Torx bit of this size are standardized, regardless of whether a manufacturer calls it a T20 or a TX20.
The letter is the universally accepted, shorthand abbreviation for Torx . Torx is the trademarked name for a type of screw drive developed in 1967 by Camcar Textron. When a manufacturer labels a bit as a T20 , they are using the standard, industry-wide shorthand to indicate a size 20 Torx-compatible tool. What Does "TX" Stand For?
