Need tie down ideas for metric fine thread

**Gremlin** · 15th January 2015, 16:00

In the back of the Hiace most seats have been removed, leaving me some brilliant holes in the floor and thread on the walls to be re-purposed as tie down points.

I thought I was away laughing, until I found out the damn japs used metric fine thread instead of standard metric, so now I can't use eye nuts and bolts like I was intending. Metric fine only seems to have standard nuts available for the most part.

So it seems like my only option is to have some sort of ring and use the existing bolts and nuts, just thread the ring through it. So what sort of ring am I looking for? Most rings for tie down use are the folding type, recess into floors etc with 2-4 tiny holes to mount to a sheet.

Failing that, it's aluminium sheet cut up with two holes in, one for mounting, one for tie down, but the floor ones would have to be bent. Needs to cope with a couple of hundred kilos I'd say.

**kiwi-on-wheels** · 15th January 2015, 16:14

weld on a loop? someone like EDL or Fortress Fasteners should be able to help you out, if they don't have it they can normally make it for you

**tigertim20** · 15th January 2015, 16:18

hard to explain the thing Ive seen, but try TWL if you have a branch nearby. I got some a couple years back for my van. that went straight in, after having the same issue you describe.

**Gremlin** · 15th January 2015, 16:21

Originally Posted by kiwi-on-wheels

weld on a loop? someone like EDL or Fortress Fasteners should be able to help you out, if they don't have it they can normally make it for you

Don't want to weld anyting to the threads etc, as then I couldn't put the seats back if I wanted to.

Originally Posted by tigertim20

hard to explain the thing Ive seen, but try TWL if you have a branch nearby. I got some a couple years back for my van. that went straight in, after having the same issue you describe.

It's a right bastard when you don't know the name of what you're looking for

**nzspokes** · 15th January 2015, 16:25

There is a van outfitting place down the road from techmoto. I deal with one of the staff. Text me tomorrow and I will look up there details at work.

**Ocean1** · 15th January 2015, 16:28

Originally Posted by Gremlin

I thought I was away laughing, until I found out the damn japs used metric fine thread instead of standard metric,

The good news is that metric fine IS a standard. The bad news is the Japs, like everyone else use lots of non-standard threads as well.

Dude, go to any fasteners supply outfit and ask what they've got, and have a wee look here for what to fasten: http://www.comac.co.nz/

Edit, looks like these migh do it: http://www.comac.co.nz/modules/SP_we...ts.php?cat=290

**nzspokes** · 15th January 2015, 16:30

Originally Posted by nzspokes

There is a van outfitting place down the road from techmoto. I deal with one of the staff. Text me tomorrow and I will look up there details at work.

Found them, http://vanextras.co.nz/

**kiwi-on-wheels** · 15th January 2015, 16:31

i ment grab a bolt that fits and weld a loop to the top of that, but yeah, any decent fasteners outfit, if they dont have it they can get / make it

**paturoa** · 15th January 2015, 16:40

I'll bring my thread pitch gauge on Saturday and we can measure it.

There are several nut and bolt places that you can go visit that will likely have a solution for you as well.

Edit: finished the last of my frame mods this arvo and stuck on the go pro thingie crooked!

**mossy1200** · 15th January 2015, 16:49

http://www.multistrut.co.nz/STRUT-FITTINGS.html

ms2106 is the one I used 75degree angle.

**Gremlin** · 15th January 2015, 17:19

Originally Posted by cassina

A bit of angle iron cut to fit with one hole for the the floor bolt and the other to fit the tie down.

Not a bad idea, will hold it in resever

Originally Posted by Ocean1

The good news is that metric fine IS a standard. The bad news is the Japs, like everyone else use lots of non-standard threads as well.

Dude, go to any fasteners supply outfit and ask what they've got, and have a wee look here for what to fasten: http://www.comac.co.nz/

Edit, looks like these migh do it: http://www.comac.co.nz/modules/SP_we...ts.php?cat=290

Yep, it is a standard, but not a common standard. I went to Anzor (my usual go to) and that's when I realised it wasn't a "normal" standard... For some reason they don't do metric fine other than nuts, and gave me another place, which also drew a bit of a blank... That link is good, very much what I was thinking of, just not sure how it's rated load wise...

Originally Posted by paturoa

I'll bring my thread pitch gauge on Saturday and we can measure it.

Edit: finished the last of my frame mods this arvo and stuck on the go pro thingie crooked!

Cheers, I'll bring a nut and bolt. Can't believe after all that work you couldn't stick a go pro mount on straight!

I believe it's 1.25

Originally Posted by mossy1200

http://www.multistrut.co.nz/STRUT-FITTINGS.html

ms2106 is the one I used 75degree angle.

That's much in line with cassina's suggestion. Do you have a rough idea of price per bracket?

**mossy1200** · 15th January 2015, 17:36

Originally Posted by Gremlin

That's much in line with cassina's suggestion. Do you have a rough idea of price per bracket?

Not much. I got mine from a bin of spares at work.
I can see what is at work if you like. Its more likely plenty of 90s around.
At a guess new would be a 5dollar item each.
your seat bolts are likely 12mm idd say and the bolt holes are 14mm. You can get m10 holes also I think.

Also I bolted mine to the bottom seatbelt bolts in the lite ace. They allow for a better angle. I made two brackets that stay in the front bolted into the firewall. I made a wheel locator also that might be in my garage if you need it. Havent seen it for a while though would need look for it.

**schrodingers cat** · 15th January 2015, 17:36

Quite often, seatbelt attachment threads and the like are M11 x 1.0
Conveniently 7/16UNF screws right in

Auto performance shops that sell competition seat harnesses would have eye bolts that thread in nicely

**Gremlin** · 15th January 2015, 17:50

Both walls and floors are M10, the nuts and bolts mate to each other happily enough (so at least consistency is there).

Wheels are already solved with a wheel chock (got them), as I'm pondering over rotating one sideways to get the bars out of the way for the 2nd bike space (and clear the roof sloping inwards near the top - aka, be able to leave the mirror on). They'll mount to a ply floor...

90s are probably more practical, can't imagine something like that would be able to bend...

**mossy1200** · 15th January 2015, 17:53

Originally Posted by Gremlin

Both walls and floors are M10, the nuts and bolts mate to each other happily enough (so at least consistency is there).

Wheels are already solved with a wheel chock (got them), as I'm pondering over rotating one sideways to get the bars out of the way for the 2nd bike space (and clear the roof sloping inwards near the top - aka, be able to leave the mirror on). They'll mount to a ply floor...

90s are probably more practical, can't imagine something like that would be able to bend...

Strop would snap well before bend the multi strut 90s. They are about 5-6mm thickness.