Grierson Posted May 27, 2016 Share Posted May 27, 2016 Very simple question! Can anyone tell me what size Allen key fits an M6 bolt. I've got a fair selection but I can't find one to fit!! Link to comment Share on other sites More sharing options...
MarkyD Posted May 27, 2016 Share Posted May 27, 2016 5mm Link to comment Share on other sites More sharing options...
Grierson Posted May 27, 2016 Author Share Posted May 27, 2016 Thanks Mark. - John Link to comment Share on other sites More sharing options...
Grierson Posted May 28, 2016 Author Share Posted May 28, 2016 Well Mark I've been all the way to town to buy a 5mm Allen key, stupidly not taking the bolt with me to try. Got back to find that 5mm key does not fit! Just back from the second visit. Tried the bolt in the store and found that the 3/16" key did the job and the 4.5mm came close. So Imperial measures/size bolts are being used on Skywatcher kit but perhaps not others. Link to comment Share on other sites More sharing options...
Waldemar Posted May 28, 2016 Share Posted May 28, 2016 So... apparantly it was not an M6 bolt... Link to comment Share on other sites More sharing options...
Davey-T Posted May 28, 2016 Share Posted May 28, 2016 There's no rhyme or reason to it, identical bits of kit can have either metric or imperial. Dave Link to comment Share on other sites More sharing options...
Grierson Posted May 28, 2016 Author Share Posted May 28, 2016 53 minutes ago, Waldemar said: So... apparantly it was not an M6 bolt... Was sold to me by FLO as M6 bolts for the Startravel guide scope bundle Link to comment Share on other sites More sharing options...
MarkyD Posted May 28, 2016 Share Posted May 28, 2016 That'll be a 1/4-20 UNC camera mount thread then which has a 4.75mm socket Link to comment Share on other sites More sharing options...
Grierson Posted May 29, 2016 Author Share Posted May 29, 2016 Thanks Mark. I'm rapidly coming to the conclusion that a degree in engineering is required to enable the kit to be put together. I now have the Startravel 80 piggy backed on to the 80ED but I'm far from convinced that the way it's dovetail marries with the EQ5 mount, given the extra weight, is the most appropriate. If any reader sees this post and has experience of using FLO's 'guiding bundle' then any observations would be appreciated. Link to comment Share on other sites More sharing options...
Davey-T Posted May 29, 2016 Share Posted May 29, 2016 When I had the ST80 piggybacked I just used a piece of flat aluminium bar drilled as required and bolted to the tube rings of both scopes. Dave Link to comment Share on other sites More sharing options...
glowjet Posted May 29, 2016 Share Posted May 29, 2016 5 hours ago, Grierson said: Thanks Mark. I'm rapidly coming to the conclusion that a degree in engineering is required to enable the kit to be put together. I now have the Startravel 80 piggy backed on to the 80ED but I'm far from convinced that the way it's dovetail marries with the EQ5 mount, given the extra weight, is the most appropriate. If any reader sees this post and has experience of using FLO's 'guiding bundle' then any observations would be appreciated. You mean you didn`t have an MSc Eng, before taking up the hobby ? Link to comment Share on other sites More sharing options...
Grierson Posted May 29, 2016 Author Share Posted May 29, 2016 46 minutes ago, glowjet said: You mean you didn`t have an MSc Eng, before taking up the hobby ? Link to comment Share on other sites More sharing options...
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