LBSC Cylinder Thread Size

This topic has 3 replies, 3 voices, and was last updated 2 May 2022 at 01:27 by duncan webster 1.

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1 May 2022 at 19:14 #596627
Bruce Voelkerding
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@brucevoelkerding91659
both the LBSC designs for Maisie and Juliet show the Cylinder mounting hole size as No. 21. I assume the hole size No. 21 in England is the same as here in the USA, that is 0.159". In neither of these drawing sets do I see the actual Screw size for the attaching Screws. The 0.159" seems rather coarse for 4BA. Would LBSC have expected someone to use a 5/32" Screw (I'm assuming that back then someone would have a 5/32"-32 Die or some such thread) ?
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1 May 2022 at 19:14 #28689
Bruce Voelkerding
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@brucevoelkerding91659
1 May 2022 at 19:47 #596630
Nicholas Farr
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@nicholasfarr14254
Hi Bruce, LBSC's notes says the cylinders are attached with 5/32" screws or bolts with the nuts inside the frame, for Juliet, I guess that Maisie would be the same.

Regards Nick.
2 May 2022 at 01:27 #596649
duncan webster 1
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@duncanwebster1
5/32 * 32 is a standard bsw size, and I think was what Meccano screws were in the olden days. Your chance of finding new screws is slim, I'd use m4
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LBSC Cylinder Thread Size

LBSC Cylinder Thread Size

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