Timeline for Need more torque for driving screws
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10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 24, 2017 at 12:20 | comment | added | Agent_L | @Crowley Neither did I. But most of the shafts are spline and there are drill mounts which are splines, so IMHO "the best shape for torque transfer" is quite common, just not for screw heads : ) | |
| Jan 24, 2017 at 12:17 | comment | added | Crowley | @Agent_L I have never seen Bristol and the others before and perhaps so does the author of the text. Thank you for the introdution. | |
| Jan 24, 2017 at 12:12 | comment | added | Agent_L | @Crowley You said "Torx design has the best shape for torque transfer". I'm not arguing with "better than some", I'm arguing with "the best". | |
| Jan 24, 2017 at 12:10 | comment | added | Crowley | @Agent_L Torx edges are slanted, but Allen and Robertson edges are slanted even more. And compared to Phillips, Torx is even better. Bristol. LINE and Polydrive are better than Torx but it dosn't mean it is bad. | |
| Jan 24, 2017 at 11:15 | comment | added | Agent_L | @Crowley Torx isn't very good at torque transfer, because all edges are slanted. No shape without surfaces perpendicular to the torque can excel at torque. Bristol, LINE and Polydrive are pretty much the only ones that do just that. Their rarity only proves that torque transfer isn't as important as low cost of production when it comes to screw heads. On shafts, it's the other way around, hence spline is dominant. | |
| Jan 24, 2017 at 3:14 | comment | added | NZKshatriya | @Crowley If only I could find larger Torx bits and screws I would use them for everything....That said, the only thing I currently have a use for Torx drivers is for electronics and computer repair. But I do have to say that the screws tend to stay on the bits after you remove them, even when the bits are not magnetic. | |
| Jan 23, 2017 at 20:51 | comment | added | Jim Stewart | Thanks for the alert about Pozidriv. Gotta admit that I didn't have an operational understanding of the difference, and this was the cause of some considerable puzzlement and grief. Another type of driver is a combination Phillips/square drive. Boxes of Deck Mate all purpose exterior screws contain these labeled "PSD 2 - 2". I didn't understand why what I thought was just a Phillips drives these screws so well. | |
| Jan 23, 2017 at 18:11 | comment | added | Peter Green | As well as the correct type make sure you use the correct size. . | |
| Jan 23, 2017 at 16:23 | comment | added | Crowley | I've read somewhere that Torx design has the best shape for torque transfer. It is stable (unlike flat screw), doesn't tend to "skip" like Philips and has better angle of attack than Allen and Robertson. | |
| Jan 23, 2017 at 10:58 | history | answered | jpa | CC BY-SA 3.0 |