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Old 7th August 2014, 09:49 AM
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airborn68 airborn68 is offline
Senior Member
Join Date: Apr 2011
Member of: Ponte & Hull & District Ft (secretary)
Location: UK, Hull. East Yorkshire
Posts: 352

Hi Pal

Just measured mine it is 1.25 mm .050"

I think they can be hard to get sometimes, but the 2.5mm grub screws are used on model nitro cars so should be available at some model shops.

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