Replacement mounting/firewall nut for cast iron sediment bulb
 

Took my cast sediment bulb off to clean and paint and lost the mounting nut and washer. Bought one from Brattons but they called and said they’re out. No one else seems to have one. Anyone have any advise on sizing or source so I can get it back in the car for now?


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Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

I would try a hardware store or industrial supply. You are looking for
a 3/4-16 hex jam nut.

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

the thread on this nut was 3/4-16, but it was also very wide and thick. Bratton's had to have a machine shop make them special for them. But as with a lot of things that shop closed, and the quotes from new shops that we are receiving right now on part prices or quantities are not pretty.

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

Oh I get it. Was hoping to get it from Bratton's of course. Having spent most of my life in heavy metal fab and now owning a business that is a mix of retail, importing, contract fabrication, wholesale warehousing and manufacturing I totally understand the challenges. Thank you!

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

McMaster-Carr has 3/4-16 hex nuts by 1" thick with 1-1/8" wrench flats for $10.35 for 10 pieces.

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

is it the same as steering wheel nut ?

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

I have one I will give you if you PM me your address.

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

I appreciate it - I’m visiting a forum member and guru tomorrow and hoping maybe he has one on hand. If not I may take you up on it! Thank you!


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Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

We have them at Berts

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

been a few years sinsce I saw either one, but pretty certain the sediment bowl nut is bigger....

Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

Well it was bugging me that I couldn’t find it as I remember taking it off and it could only be in a couple of places. So I once again pulled everything apart. To no avail.

Then I thought, “I didn’t throw them in the rust remover solution and leave them in there did I?”

Bingo

So thank you everyone and for future reference for anyone looking for one...

Indeed it’s 1-1/8 across the flats. 3/4 coarse pitch (16?) thread. One side flat and one chamfered. Thickness is 0.317 on mine.

Lock washer is a simple split lock washer. 3/4 ID, 1-1/8” OD and 1/16” thick.

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Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

Separate post as tapatalk won’t let me upload more than one photo at a time ...

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Re: Replacement mounting/firewall nut for cast iron sediment bulb
 

I checked Berts. Didn’t see them online. I should have called. I’m more of a “phone as a last resort” kind of guy.


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