RT65CB-SWL Posted December 16, 2018 Share Posted December 16, 2018 Does anyone know what thread size TeleVue and Meade use for the safety screw on their eyepieces? Link to comment Share on other sites More sharing options...
Davey-T Posted December 16, 2018 Share Posted December 16, 2018 Do you mean on diagonals ? Dave Link to comment Share on other sites More sharing options...
RT65CB-SWL Posted December 16, 2018 Author Share Posted December 16, 2018 4 hours ago, Davey-T said: Do you mean on diagonals ? Dave Sorry, not those. I meant the safety screw on the 2.00" nosepiece e/p's, (i.e. TeleVue Nagler T1's and Meade Series 4000 UWA's), so that they can be used with a 1.25" diagonal etc. Link to comment Share on other sites More sharing options...
Moonshane Posted December 16, 2018 Share Posted December 16, 2018 It will be imperial but not sure which. Link to comment Share on other sites More sharing options...
John Posted December 16, 2018 Share Posted December 16, 2018 I found a thread on another forum that stated that Tele Vue had confirmed that the safety screws were imperial 10-32 UNF 7/16 inch long. I'm not familiar with imperial fittings so I hope that makes sense ! Link to comment Share on other sites More sharing options...
Louis D Posted December 17, 2018 Share Posted December 17, 2018 20 hours ago, John said: I found a thread on another forum that stated that Tele Vue had confirmed that the safety screws were imperial 10-32 UNF 7/16 inch long. I'm not familiar with imperial fittings so I hope that makes sense ! The 10 (or #10) is the unitless diameter and 32 is threads/inch. I don't know if they're common in the UK, but most big box home improvement stores in the US carry a wide assortment of UNF threaded screws including this one. Link to comment Share on other sites More sharing options...
Merlin66 Posted December 17, 2018 Share Posted December 17, 2018 The UK would call this a 3/16" UNF ..... Link to comment Share on other sites More sharing options...
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