Battery Tie Down Bolt Size

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Oct 20, 2011 | 08:51 PM

rtpassini

Thread Starter

Drifting

Joined: Feb 2011

Posts: 1,826

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From: Plymouth Wisconsin

St. Jude Donor '11-'12

Battery Tie Down Bolt Size

The previous owner removed it and Im going to need it for AutoX

I bought one of those side ones with a bolt from Advance auto, but the bolt they supplied isnt the right size. What size bolt is it?

Oct 20, 2011 | 09:00 PM

Antvette

Drifting

Joined: Jul 2004

Posts: 1,518

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From: Round Hill, VA

I'm not 100% sure on the thread size, but I know the head is 1/2in...hope that gets you going in the right direction at least.

Oct 20, 2011 | 09:03 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,565

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From: Dyer, IN

Quote:

Originally Posted by rtpassini

The previous owner removed it and Im going to need it for AutoX

I bought one of those side ones with a bolt from Advance auto, but the bolt they supplied isnt the right size. What size bolt is it?

Not sure what you mean by "tie down"..if that is some kind of different strap or something?

The factory battery hold down bolt is a M8x1.25x55

Oct 20, 2011 | 09:06 PM

rtpassini

Thread Starter

Drifting

Joined: Feb 2011

Posts: 1,826

Likes: 1

From: Plymouth Wisconsin

St. Jude Donor '11-'12

wrong terminology. A lot of batteries are held down by a "T bar" or tie down that goes over the top with J hooks. Vettes obviously use the side hold down thingy. my brain is fried, I cant think of anything tonight!!!

But thanks for the info on the bolt!

Oct 20, 2011 | 09:06 PM

lucky131969

Tech Contributor

Joined: Jan 2007

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From: Dyer, IN

Quote:

Originally Posted by Antvette

I'm not 100% sure on the thread size, but I know the head is 1/2in...hope that gets you going in the right direction at least.

1/2 inch? It's metric.

Oct 20, 2011 | 09:07 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,565

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From: Dyer, IN

Quote:

Originally Posted by rtpassini

No biggie. Good luck with the rest of the work

Oct 20, 2011 | 09:40 PM

Antvette

Drifting

Joined: Jul 2004

Posts: 1,518

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From: Round Hill, VA

Quote:

Originally Posted by lucky131969

1/2 inch? It's metric.

I guess mine is different then cause I removed it the other day and the 1/2in worked flawlessly.

Oct 20, 2011 | 10:02 PM

dndrsn

Melting Slicks

Joined: Jun 2004

Posts: 2,453

Likes: 81

From: Fishin' Pole FL

Quote:

Originally Posted by Antvette

I guess mine is different then cause I removed it the other day and the 1/2in worked flawlessly.

8mm bolt has a 13mm head. 13mm = .512 in. that's only .012 in.
bigger than 1/2 in. 1/2 in. socket would fit.

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Oct 20, 2011 | 10:03 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,565

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From: Dyer, IN

Quote:

Originally Posted by Antvette

I guess mine is different then cause I removed it the other day and the 1/2in worked flawlessly.

The C5 is dimensioned in the metric system, so yours is not different. If my memory serves, the bolt head is 13mm, so if you have a sloppy 1/2 socket, or a worn bolt head....yes, the 1/2 inch socket will work.

12.7mm = .5 inches