Hardware source M8X25X10 studs?

[CosmosMpower]

I'm looking for a threaded stud M8X25X10 and having no luck finding something like that at HD etc. Anyone have a hardware source for something like that? Prefer automotive strength materials.

Thanks

[altiain]

Typically metric fasteners are listed in diameter x thread pitch x length. I'm not sure what an M8x25x10 stud is, but I'm guessing it's actually an M8x1.0x25mm, which is going to be harder to find. Standard thread pitch for an M8 is 1.25mm (M8x1.25).

In metric, you'll want a minimum Class 8.8 fastener for an automotive application. Class 10.9 offers approximately 50% more tensile strength, but can be more susceptible to fatigue failure. I'd opt for a Class 8.8

You might try McMasterCarr.com. What is this for?

[CosmosMpower]

Sorry it's M8X1.25X10mm. It's for attaching an intake manifold to the head.

[altiain]

Closest thing McMaster Carr has is a 12mm in stainless. Not sure I'd use that.

[Radio-Active]

10mm is only 3/8" long. Are you sure about that?

[CosmosMpower]

10mm is only 3/8" long. Are you sure about that?

Good point, will double check.

[jrj512]

10mm is only 3/8" long. Are you sure about that?

If it's for his Lotus, then anything longer might be too heavy and bend the chassis with the weight.

[goofygrin]

Elliots hardware in Plano MIGHT have it.

If it's for exhaust manifold, hit up Jegs or Summit.

[CosmosMpower]

I think the 10mm is the section that is threaded that goes into the head, I'll have to figure out what the overall length is

[Rob®]

If you need an intake manifold stud, I have spares from my 1.6s. I'd be happy to throw a few in an envelope if needed. (or you can come all the way out here to pick them up)

[Fair!]

You might try a retail place like Fastenal (there are stores in Plano, McKinney, and all over DFW). Sometimes Elliot's Hardware in Plano can be a great metric source.

But metric studs?... wow, I usually have to order any studs we use (for motor mounts and some other products we manufacture). McMaster Carr is super "easy" to order online from, but Metric & MultiStandard's prices (Irving) are always lower (no online ordering). Ditto Fastenal... their online ordering system stinks, and the pricing is terrible online compared to having a commercial account in their store. So I'd look at MMC online first, then call MMS.

Just getting the right stud length is tougher than it might seem. There are several DIN standards that are used to measure "unequal length studs", and it takes looking in books and pictures to figure it all out. There's usually an overall length (OAL) and a length of threaded stud on one side of the center shouldered portion. See what I mean below... That is an M10x80 stud, and in this DIN variation it has the same amount of threaded portion on both sides of a set width center section. It gets way more complicated when the two sides are different threaded lengths.



We stock all manner of M8-1.25 bolts that we use on camber plates. Plated, bare black, 25, 30mm long, and some more. If you're near Allen/McKinney give us a ring and I'll toss you a handful of these to try, if it gets you out of a bind. I literally have thousands of these things in stock.



Good luck,

[CosmosMpower]

You might try a retail place like Fastenal (there are stores in Plano, McKinney, and all over DFW). Sometimes Elliot's Hardware in Plano can be a great metric source.

But metric studs?... wow, I usually have to order any studs we use (for motor mounts and some other products we manufacture). McMaster Carr is super "easy" to order online from, but Metric & MultiStandard's prices (Irving) are always lower (no online ordering). Ditto Fastenal... their online ordering system stinks, and the pricing is terrible online compared to having a commercial account in their store. So I'd look at MMC online first, then call MMS.

Just getting the right stud length is tougher than it might seem. There are several DIN standards that are used to measure "unequal length studs", and it takes looking in books and pictures to figure it all out. There's usually an overall length (OAL) and a length of threaded stud on one side of the center shouldered portion. See what I mean below... That is an M10x80 stud, and in this DIN variation it has the same amount of threaded portion on both sides of a set width center section. It gets way more complicated when the two sides are different threaded lengths.



We stock all manner of M8-1.25 bolts that we use on camber plates. Plated, bare black, 25, 30mm long, and some more. If you're near Allen/McKinney give us a ring and I'll toss you a handful of these to try, if it gets you out of a bind. I literally have thousands of these things in stock.



Good luck,

Thanks Terry. Luckily I found someone that has a spare set they are holding and they will get all the measurements for me tonight. Total overall length, if it's threaded the entire length or has a break in the middle etc. I may take you up on your offer to swing by and pick up a few different sizes since I'm just down the road in Frisco to see what fits and then make a trip to one of the aforementioned hardware stores.

[CosmosMpower]

If you need an intake manifold stud, I have spares from my 1.6s. I'd be happy to throw a few in an envelope if needed. (or you can come all the way out here to pick them up)

Thanks for the kind offer but I need them for a 2ZZ Toyota motor and it's an aftermarket piece anyway.

[Rob®]

Thanks for the kind offer but I need them for a 2ZZ Toyota motor and it's an aftermarket piece anyway.

No problem. I thought I read a corrected size that was the same as the spare studs I have, but seems I just made that up. Oops

[CosmosMpower]

Ok here's what I need. Mcmaster has something close. 45mm overall with the 10mm side going into the head (which is correct) and the side that uses the nut at 22mm (which is close). Not sure if the 5mm overall length and 2mm nut side length difference will be a problem or not.

[POS Racing]

Have you tried Autozone or Napa?

Napa normally has the studs.

[CosmosMpower]

Have you tried Autozone or Napa?

Not yet, just got the pic with the specs. Will check it out at lunch.

[Robert]

I think all thread would work fine.

http://www.mcmaster.com/#all-thread-rods/=ah2hwl

[CosmosMpower]

I think all thread would work fine.

http://www.mcmaster.com/#all-thread-rods/=ah2hwl

That's what I was thinking. Is there any reason that the threads stop and then start again? A fully threaded rod should just bottom out in the head and then as long as it's long enough and can fit a nut on the other end it should work right?

[POS Racing]

That's what I was thinking. Is there any reason that the threads stop and then start again?

Yep so you don't bottom out the bolt in the head and to keep you from crushing the gasket if ya don't know what your doing.