Loose Nut

[Rasselas36]

I recently found this threaded nut beneath the engine fire suppression system. I have searched all over to find where it belongs but no success. I even tried to find a similar nut with no success. Can someone please help me identify where this nut belongs. Thanks.

 

[Apex]

Hang onto it, and you will never find out what it goes to.
Throw it away, and tomorrow you will find the use for a desparately needed and impossible to buy a replacement nut.

It looks like a thumb wheel for a shut-off device.....?

 

[Rasselas36]

thanks.

 

[kloudie1]

I have seen those type nuts used on covers for electrical boxes that might have to be removed kinda often.. I have seen those used on battery hold-down clamps.. I'd look for a cover or clamp that has to be serviced relatively often.. raw water strainer? .. Strap clamp for fire suppressant bottle?

 

[Rasselas36]

thanks.

 

[capta]

It sort of looks like the head of an adjustment screw. It probably had a lock washer behind it to keep it secure.

 

[Rasselas36]

thanks

 

[Kermit]

If it's a loose screw it's definitely a forum member.

 

[Stu Jackson]

But then there'd be a lot more of 'em!

If it's a loose screw it's definitely a forum member.

 

[Rasselas36]

I have owned this boat for 11 years and I check the engine oil and fluid levels every time I take the boat out so you can imagine my surprise this past weekend when I discovered this threaded nut. Need less to say I did not take the boat out.

 

[31seahorse]

It is definitely a round GOZONTA. Now, all you need to do is find the GOZINTA that it fits on. I like what Kermit & Stu said! It does look familiar though. How about a nut to hold a filter body in place? How about an adjusting nut for one of the cables in that area. If that is what it came from you were wise to stay at the dock when you discovered it. Best Wishes.

 

[Rasselas36]

thanks

 

[brazenarticle]

Looks similar to the nut on top of my Universal M3-20 glow plugs

 

[Rasselas36]

Thanks but I have a Yanmar.

 

[Ken13559]

After 13years owning my boat, I still find screws and sanding pads in hidden places. Manufacturing must be pretty liberal with material useage!

 

[Rasselas36]

That is what they mean when they say "Built in America" Thanks for the reply.

 

[jibes138]

When dealing with composites they are not strong enough to thread screws directly into the laminate. The best method is to drill all the way through and have a bolt and nut with large backing plates and/or large washers to achieve the desired strength. When you can't get access to the other side for a nut then it is standard practice to mold in a threaded insert that has serrated teeth on the OD to prevent the molded in insert from turning when you torque the screw into the insert. The part in your picture looks like that kind of insert. A thumb screw typically has a knurled OD (outside diameter) that does not have such large protrusions or sharp points. A knurled OD looks like a cross hatch pattern instead of straight teeth like that item. If it is an insert then it can't really fall out unless there is some laminate damage to go with it so it might just be an extra loose part that got shipped with the boat by mistake. Sometimes these are press fit into a panel and the spline acts as an anti rotation feature. If so it could have worked its' way out of the hole it was pressed into, so see if you have a hole that looks like it matches the shape of the nut.

 

[Rasselas36]

Thanks Dave. I will definitely check out the 2 panels surrounding the area I found the nut.

 

[Ron20324]

Brings to mind the saying there's nothing wrong with the boat except "the nut holding the wheel" .

 

[Afrakes]

What are its dimensions, thread count, etc.