Confusing myself with brake fittings

[reb78]

This thread helps (https://www.mig-welding.co.uk/forum/threads/sae-or-din-brake-pipe-flare.141492/), but I am still managing to overcomplicate a simple repair in my mind.

I need to cut out a corroded section of brake pipe on my discovery 3. I think the pipe is 3/16" or 4.75mm

I have a 3/16" SAE flare tool that I have for my Land Rover 110. I think the disco fittings are DIN but for splicing in a new section of pipe, I think its fine to use the SAE tool as long as I use the correct fittings?

With this connector - https://www.carbuilder.com/products/in-line-connector-m10-female-to-m10-female is it ok to put an SAE bubble on each end of pipe and use the appropriate SAE male fitting (which I think is this one - https://www.carbuilder.com/products/brass-m10-x-1-single-male-brake-union)?

Why dont the sellers make it clear if the fittings are SAE or DIN?!

 

[Craig-SM]

Fairly sure that is what I used on mine and I might still have some in the garage

 

[reb78]

Thanks. I'll get some ordered. Only issue now is that the other end is corroded right to a fitting which I think will be DIN so I don't think my flare tool will do that one. Have asked a friend if they have one.

Rear pads and discs need doing while it's all in the air!

 

[OJCar]

According to Merlin Motorsport those M10 in line connectors have SAE seats
https://www.merlinmotorsport.co.uk/p/brass-brake-union-female-female-m10-x-1-bbu-hu21

The 3/8 UNF connectors are also SAE seats

 

[reb78]

According to Merlin Motorsport those M10 in line connectors have SAE seats
https://www.merlinmotorsport.co.uk/p/brass-brake-union-female-female-m10-x-1-bbu-hu21
View attachment 525972
The 3/8 UNF connectors are also SAE seats
View attachment 525973

Ah. Great. I looked in a couple.of places and couldn't find the info.

I'm going to order a DIN flarer too for the other end of the pipe. It'll come in handy for other jobs.

 

[reb78]

So next silly question - is this DIN or SAE - https://www.carbuilder.com/products/brass-m10-x-1-single-short-male-brake-union ??? It looks DIN but why dont they say in the description - Merlin dont say either on their listings that I can see.

The long ones look like SAE? - https://www.carbuilder.com/products/brass-m10-x-1-single-male-brake-union

I need one DIN union in M10x1

I must seem stuck with the carbuilder website but i want a DIN version of the flaring tools they sell and want to combine the postage.

 

[indykid]

So next silly question - is this DIN or SAE - https://www.carbuilder.com/products/brass-m10-x-1-single-short-male-brake-union ??? It looks DIN but why dont they say in the description - Merlin dont say either on their listings that I can see.

The long ones look like SAE? - https://www.carbuilder.com/products/brass-m10-x-1-single-male-brake-union

I need one DIN union in M10x1

I must seem stuck with the carbuilder website but i want a DIN version of the flaring tools they sell and want to combine the postage.

Being fully threaded, I'd expect them to be SAE. DIN fittings have a plain section at the flare end of the thread and the threads in the female part aren't usually tapped full depth so without the plain section, it'll become thread bound before the flare seats.

If you have a lathe, you have a solution, but you'd probably be better buying some fittings off ebay or your local motor factors.

 

[reb78]

Being fully threaded, I'd expect them to be SAE. DIN fittings have a plain section at the flare end of the thread and the threads in the female part aren't usually tapped full depth so without the plain section, it'll become thread bound before the flare seats.

If you have a lathe, you have a solution, but you'd probably be better buying some fittings off ebay or your local motor factors.

Thanks. I may need to buy some.

The original has come out looking pretty good so I may re-use that if i cant find anywhere easy to get some. Local motor factors seem to be Eurocrapparts these days and doubt they would know what a brake fitting is. Interestingly, screwfix have them if i am in a tight spot!

 

[indykid]

Halfords too according to Google

 

[reb78]

Halfords too according to Google

Nearest one is an hour away unfortunately. Screwfix is 15 mins.

THese are the screwfix ones - definitely DIN I think? https://www.screwfix.com/p/pearl-consumables-metric-male-m10-x-1mm-brake-pipe-unions-9-pack/390YY

 

[indykid]

Nearest one is an hour away unfortunately. Screwfix is 15 mins.

THese are the screwfix ones - definitely DIN I think? https://www.screwfix.com/p/pearl-consumables-metric-male-m10-x-1mm-brake-pipe-unions-9-pack/390YY

Yep, they're DIN.