Why torx screws

March 5 posts. February 4 posts. January 4 posts. December 3 posts. November 4 posts. October 5 posts. September 4 posts. August 5 posts. June 3 posts. May 5 posts. April 4 posts.

December 2 posts. November 5 posts. August 3 posts. July 4 posts. May 1 posts. August 1 posts. In high end work, square drive heads need to be turned much like traditional slotted heads so as to line up, while the 6 point drive of the Star is random enough not to matter.

This also means that it is easier to enter the driver into the screw head, as there are more entry points in one revolution. On a big project, this saves you time and hassle. This makes drivers last longer. As a result of the higher torque capacity, generally Star heads are in better condition once the screw is set, making removal easier if ever necessary.

Mar 14th Jadon Allen. Torx gets the job done; it's just that it's not everything I would want. Post by JNewell » Mon Mar 07, pm Historically, experience with hex-type screw heads shows they are much easier to round out than a Torx head.

Add to that the following problem and it's pretty much a slam-dunk IMO: the actual size of the hex recess varies in general by country of origin, or more specifically whether the screw is US-domestic or foreign. Foreign fasteners tend to be metric. US hardware tends to be SAE. That's not a hard and fast rule, but it is still common.

What that means in real life is that it is very likely that people will use the wrong size wrench on the screw, which makes rounding out the screwhead even more likely.

Post by Evil D » Mon Mar 07, pm You probably can't strip a triangle head screw unless you use the wrong size bit, but they're just not common enough to use. I've only even seen them in a few random applications. Square head screws would be another option though. Post by yablanowitz » Mon Mar 07, pm I'm pretty sure Paul is right. In a production environment, aligning a triangle driver to a triangular hole simply takes too long, and time is money.

Even if the screws and drivers were free which they're certainly not , it would add to production costs on the time factor alone. As for the lobes of the Torx driver shearing off, not within the torque specifications of the fastener. If you exceed those specs, the fastener will fail no matter what system is used.

I don't believe in safe queens, only in pre-need replacements. Post by jackknifeh » Mon Mar 07, pm Evil D wrote: You probably can't strip a triangle head screw unless you use the wrong size bit, but they're just not common enough to use. My :spyder:'s: Tan M4 Manix!

Post by jzmtl » Mon Mar 07, pm The square drive are called Robertson and very common in Canada, almost every wood screw is made of it. There's some history on why it wasn't popularized. At this size Torx is actually very good at resist stripping, when they are used on cars however that's another story. Why are Torx fasteners becoming more common on bicycles? Stay Connected. Are you a U. Here's How!