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#1
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Imperial and metric
Hi,
I have an x6, a x6 squared and an x6 Cubed I need to replace some of the old screws under the chasis of the cars and was going to use stainless one's. Most of the screws are still imperial and I would like to change them to metric so does anyone know if the threads are the same pitch or am I going to end up threading half of the holes? Thanks all. |
#2
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Don't use stainless steel, they will strip in no time. Use 10.9 steel.
If its going into plastic in it shouldn't be much of a problem but anything metal will work. I would leave the screws imperial. |
#3
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Try Dms racing as they do a brand called DDP that do torx head imperial screw and as far as i can remember they used to do a screw kit for the X6 sq in torx head-imperial.
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#4
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Thanks for the replies guys, does anyone know if the threads on imperial and metric screws are the same?
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#5
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Erm, one is imperial, one is metric.
No. |
#6
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Helpfull thanks!!
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#7
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The threads are different. You can stick 2mm screws into the plastics and they fit well. if there going into metal no chance.
If you really wanted you could use a thread cutting bit and re thread the metal parts too, converting all the screws. |
#8
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The most popular screws sizes in 1/10 buggies such as the X6 you mention are either imperial (unified) 4-40 and metric M3x0.5 (or M3 for short).
The UNC (unified coarse) 4-40 is a #4 (approx 2.8mm) screw with 40 threads per inch. The Metric M3 is a 3mm screw with a thread every 0.5mm. Very different screws which really don't mix, but you can usually force a larger M3 into plastic which should be occupied by a 4-40
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