Centre Main Strap Bolts
Turbo Mini Forums

Well after being informed that the minispares bolts supplied with the centre main bearing cap are pants (thanks Retired) I have dicided that I need better quality ones.

It is for a small-bore but they are the same thread as big-bore (7/16" UNF). If anybody has an ARP part number, or even better, has some for sale I would really appreciate it

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

Have you done a search on this? I remember seeing a discussion about this. I had this problem and got some from Rob walker engineering. He has cap head bolts for his centre main kit.

The ARP ones are a special order from the States. I think someone said CAT use the same thread in some of their stuff. FastCarl had some I think.

Hope this helps.

Nick.

I did search but couldn't find an ARP number or an online shop that sold them.

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

Hi,
Here you go courtesy of the majic button

Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

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Visit www.doyouneedabrain.co.uk

My Mini build diary

Demon Tweeks can order them in I think??

Hi,

I'm fairly certain its was FastCarl who had the CAT ones (at that time) and sold me a couple. Re-check the thread I posted and see.

Is this worth a "group buy" ???

Rod.

Schrödinger's cat - so which one am I ???

Thanks again for the advice rod. I did see that Carl could supply them but I didn't want to be annoying him with PMs so I started this topic. I may PM him now though

nbooth660, Demon Tweeks also only list ARP stuff per application. Unless I can get an actual part number for what I need then I would only be wasting their time

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

I have two full sets of the cat bolts if you still need them. I will be able to sort the part numbers when im next at the unit! I have had them in since the start of the year with no worrys!

Have you tried Trident Racing at Silverstone, they sell a lot of fasteners for motorsport applications and will have a 12.9 or 16.9 grade bolt in 7/16 UNF probably in a cap head or AN bolt. Not cheap if you go for AN bolts mind. Use them all the time at work. Give them a call or ask them on email with the required sizes. www.tridentracing.co.uk

I have 2 ARP bolts that are 3.75" long...they are the ones pictured in the link above. They were a 1/4" too long for me...but I have heard of people using them...that is why I got them in the first place. If you decide you want them let me know.

FYI...the ARP part number for 7/16"-20 x 3.5 12pt....is 743-3500

The other PN I referred to in the link above was APT's PN...they told me that they have not updated their website in years...best to just call them

Thanks for helping me track these down everyone. Much appreciated. I will track a set down using that part number.

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse