Nut for Bimba Piston

[chris31]

I have run into a simple issue. I just received our AndyMark 2 Gen 2 pneumatic shifters and started working on it when I realized that I do not have the nut that holds the piston onto gearbox. According to the PDF on AndyMark's site it should come with the piston (3/4" bore, 1" stroke pneumatic cylinder. Bimba part #: M-041-DP) but it did not. Not a big deal except for the fact that I cant find a nut to go on it at all. Does anyone know what size it is? Thanks.

Chris

[Alex.Norton]

We had the same problem that you did. We got the same size cylinder but couldn't find the nut to go with it. It was a while ago but I think I remeber it being a 5/8-16. I'm pretty sure of the size and less on the thred pitch.

Hope this helps

[chris31]

I should have said that I was pretty sure that it was 5/8in but I didnt know that the thread was. All I saw at Lowes did not work. I think it was 5/8-11. Ill have to go back. Can anyone confirm exactly what I need? Thanks.

[Alan Ing]

Pretty close guys, but a 3/4" bore bimba cylinder takes a 5/8" - 18 Threaded nut.

This is straight from the pneumatics manual. We have had to buy a bunch on our own in the past.

[chris31]

Pretty close guys, but a 3/4" bore bimba cylinder takes a 5/8" - 18 Threaded nut.

This is straight from the pneumatics manual. We have had to buy a bunch on our own in the past.

Duh, I cant believe I didnt check the manual. Thanks!

[Jay H 237]

If you can't find it at Home Depot/Lowes then try a local hardware store, autoparts store or you can order them from MSC or McMaster-Carr, although there may be a minimun order for the last two.

[chris31]

I couldn't find it at Lowes or Home Depot so yesterday I placed a McMaster-Carr order with some other stuff that I needed to order.