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| Thread ID: 62392 | 2005-10-06 00:37:00 | Screwhead Types | FrankS (257) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 393759 | 2005-10-06 00:37:00 | If you have just pulled a piece of gear apart and got an odd looking screwhead have a look at www.lara.com The square recess are also known as Robertson Robertson screwdrivers have a colour coded handle for easy selection as different screw sizes require different size tips. The colours and their associated screw sizes are: * Orange (#00) — No. 1 & 2 screws (uncommon) * Yellow (#0) — No. 3 & 4 screws * Green (#1) — No. 5, 6 & 7 screws * Red (#2) — No. 8, 9 & 10 screws * Black (#3) — No. 12 and larger screws |
FrankS (257) | ||
| 393760 | 2005-10-06 00:57:00 | Yes very nice, what on earth is your point? | Battleneter (60) | ||
| 393761 | 2005-10-06 01:34:00 | ;) Any information might be handy sometime. But I wouldn't put too much trust in colour coded handles. If it fits, it's the right one. If it doesn't it's not. The Robertson screwhead is a very good one. It does not slip. It's so good that car manufacturers decided not to use it. They went with the dreadful Philips head. That had the advantage from their point of view that the Philips driver would ride out of the screw rather than break it if excessive torque was applied. And they knew that excessive torque would be applied. They knew the car asemblers, on piece rates, could never, ever be convinced that the air screwrivers would not go faster if the torque limiter was set to maximum. If you're stuck without a Torx screwdriver, Allen keys will fit some sizes, and work well if they aren't done up too tight. I haven't struck the right size for T6 (used in cell phones). |
Graham L (2) | ||
| 393762 | 2005-10-06 01:43:00 | If one wants information like this "google" is probably more appropriate. Forum posts are meant to have a point or a question. "Most cars have 4 wheels and 2/4 or even 5 doors. They more commonly run on petrol" Yawn |
Battleneter (60) | ||
| 393763 | 2005-10-06 02:02:00 | So Frank and I have preemptively supplied an answer. Do you have a question? :cool: | Graham L (2) | ||
| 393764 | 2005-10-06 02:08:00 | Hi Frank. Interesting illustrations. I recently met a set of small screws with the five-sided recess head. Mitre 10 was able to supply a small set of about 6 different head recess shapes (none of which were familiar) and a handle for $6.95. Saved me grinding and butchering an Allen key. | Scouse (83) | ||
| 393765 | 2005-10-06 02:10:00 | So Frank and I have preemptively supplied an answer. Do you have a question? :cool: Should I use the Red or yellow screw, and why doesn't this flat head work on either? |
Battleneter (60) | ||
| 393766 | 2005-10-06 04:52:00 | Pre-emptive or a post-script? I have had many Phillips screws ruined by some hobbiest using a Reed-Prince driver on them . They LOOK alike, but the points on the Reed-Prince are the drive area, whereas the flukes of the Phillips are the driving surface . Instant destruction of the screw results and then all the driver is good for is to sharpen it and use it as an awl . Just because it has a four-point configuration, does not make it Phillips . I see a lot Of Reed-Prince ( . sears . com/sr/javasr/product . do?BV_SessionID=@@@@1938535167 . 1128573854@" target="_blank">www . sears . com @@@&BV_EngineID=ccgdaddflglmdkgcegecegjdghldgfm . 0&vertical=SEARS&sid=I0008300030000100085&pid=00904114000) stuff in European applications like the old Whitworth ( . mototools . com/Whitworth . htm" target="_blank">www . mototools . com) system . |
SurferJoe46 (51) | ||
| 393767 | 2005-10-06 06:13:00 | Having spent some considerable time googling it seemed a pity to waste the effort. Must agree some flat heads just do not work. | FrankS (257) | ||
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