Quantcast

De-rusting an odd nut and bolt

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

AndyT

Established Member
Joined
24 Jul 2007
Messages
11,829
Reaction score
217
Location
Bristol
I was given this nut and bolt recently. A bit rusty, but useful looking.

IMG_20200204_130901139.jpg


Turns out to be a bit of an odd size. The thread pitch is metric, bang on 2mm pitch:

IMG_20200204_131010016.jpg


but the diameter is only 15mm.
IMG_20200204_131027002.jpg


That's not a preferred ISO size. As far as I can see, if you do want a 15mm thread, it should be a fine pitch option only - 1mm. So what to do?

I tried removing some of the rust - I got it a bit better just by licking it:

IMG_20200204_131207321.jpg


Anyone have any idea what I should do next?
 

Attachments

Brandlin

Established Member
Joined
5 Aug 2015
Messages
536
Reaction score
1
Location
Flint
ISO Course thread - no M15 sizing
ISO fine thread - M15 x 1mm OR M15 x 1.5mm pitch

But you're right no M15 x 2mm pitch

Drop it in some kind of mild acid, as previous poster says vinegar is useful and everyone has it. Then scrub it with an old toothbrush clean the acid off thoroughly and lightly oil..
 

Lazurus

Established Member
Joined
22 Sep 2017
Messages
703
Reaction score
5
Location
Norfolk Broads
Citric acid and warm water works a treat cheap off Fleabay basically lemon juice concentraed powder
 

Bm101

Lean into the curve.
Joined
19 Aug 2015
Messages
3,772
Reaction score
129
Location
Herts.
You could always check the sticky on restoration techniques collated and posted by the bloke who got me interested in restoring old metal tools and such.
His name is Andy ....
*Affects bad surprised James Cagney accent*

Hey! Hey! Heeeey! Wayda gosh darned minute there Mister! What kinda scam you tryin' to pull here Buddy?

So go on. What's it all about A̶l̶f̶i̶e̶ Andy?
:)
 

Trevanion

Greatest Of All Time
Joined
29 Jul 2018
Messages
3,499
Reaction score
323
Location
Pembrokeshire
You can get M15 x 2.0 taps and dies but it's hard to find any fasteners! The 70mm long ones I did see were £20... Per bolt.... :shock:
 

AndyT

Established Member
Joined
24 Jul 2007
Messages
11,829
Reaction score
217
Location
Bristol
I thought I was giving you a clue when I said I licked the rust off, but you're all so determined to be helpful!

Maybe this picture will help:



:-" :wink:
 

marcros

(Trevanion)+1
Joined
11 Feb 2011
Messages
10,111
Reaction score
146
Location
Leeds
Am I right in thinking that much torque would strip the thread? I had a pair of pliers very similar
 

Trevanion

Greatest Of All Time
Joined
29 Jul 2018
Messages
3,499
Reaction score
323
Location
Pembrokeshire
I must admit, I did skew an eye when I saw "licked it", I thought maybe you'd given it a licking on a wire wheel or sommat :lol:

Well played =D>
 

Doug71

Established Member
Joined
28 Aug 2016
Messages
1,268
Reaction score
74
Location
Yorkshire
My kids bought me some chocolate tools for Christmas, they looked amazing, only a drill chuck left which for some reason I can't bring myself to eat.

chocolate chuck.jpg
 

Attachments

AndyT

Established Member
Joined
24 Jul 2007
Messages
11,829
Reaction score
217
Location
Bristol
They really are quite oddly convincing, but I've eaten mine now. That chuck would sell on eBay!
 

novocaine

Established Member
Joined
21 Jul 2014
Messages
2,194
Reaction score
52
Location
Warrington
NO.

This sort of underhand rubbish should not be allowed. Its a disgrace and you should be ashamed of yourself.

I was going to say how the tip of the thread looked to be gone and it might have been an m16.
Now im just going to be annoyed.

As pay back im going to turn a record no. 4 into a race car. You can consider it your penance and its all your fault.


:lol:
 

Latest posts

Top