How To Restore Rusty Bolts And Stop Them Rusting Again

Stuff I use

When customers enter the code when buying a system, they also get free shipping by entering the additional code FREESYSTEMSHIPPING Thus you need to enter both codes separately before making payment.

My Camera Equipment

Music

PRIVACY POLICY and FULL DISCLOSURE:
Retrorestore is a participant in the Amazon Services LLC Associates Program (UK)
DISCLAIMER: The product links in this video description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission if you purchase. This helps with my channel and allows me to continue to make videos. Thank you for your support.

Retrorestore
MMXXII
All Rights Reserved

[nigelbarton]

Love the oil quenching effect Martin. My only advice would be put the oil in a tin rather than a plastic container. If you drop tHe hot bolt in, it burns clean through and makes a hell of a mess- ask me how I know 😁

[MrJozza]

Thanks for showing us the technique. How about leaving those 3 bolts outside for a while and see which ones rust first (If they rust at all) ?

[sixandtwothrees]

Linseed oil is the one traditionally used for hot quenching. Smells better, too!

[alant]

Beware not to get them too hot as it will cause the blacking to flake off and and also may alter the tensile integrity of the screw/bolt.

[euan]

Will give this a go next time, usually just wire wheeled them in the drill press but your results are much better once again thanks for sharing Martin 👍

[nascarisawesome]

Thanks a lot mate. Been working on my bike and couldn't find some new bolts, so I used some your tricks.

[vijayantgovender]

Thank you Martin enjoy watching your videos I am watching from South Africa

[byebier]

Thanks for a good video. What type of rock tumpler must I look foe

[foggymtnbreakdown]

Here's an alternative. After heating the bolt or nut, quench it in a tub of molybdenum disulfide brake grease. One of the reasons molybdenum disulfide is used in brake grease is because it is very insoluble in water and won't wash off when you drive in the rain. Molybdenum disulfide is black as coal. Engine oil is not. That black grease gets in the cracks of the skin on your fingers and takes forever to come out. Motor oil comes off easy with some soap and water. Cool some hot bolts in black molybdenum disulfide brake grease. They will be less likely to rust when exposed to the elements.

[Sealacamp]

Case hardening. Old metalworking trick. Works great. You can even heat em up a few times and do that more than once to increase the hardened layer thickness.

[kevinmccarley]

Good job! What does the heat do for the grade of hardness to the bolts? As a safty factor. I've read the oil be heated. Ironically. On line, they tell you different stories on the temperature to heat the oil. Room temperature, 150° to 170°, 370°, ect.
Just an enquiring mind.
I really liked the bolt treatment.
I was wondering what temperatures to keep the different hardness?

[ssmith]

Cheers mart, been looking forward to a video like this, would like to see more vids like this, like repairing threads, how to deal with snapped bolts the fun stuff lol

[Bioruss]

If I am not mistaken the oil quenching process is called blueing. There is a cold chemical method but personally back when I was restoring motorcycles I used the heating and oil method. I thought it looked better and lasted for forever practically.

[gimble]

Great video, blueing is an excellent technique to use on nuts and bolts, but aswell as carbon and other debris in engine oil its heat that also contributes to turning it black so colour in using even new engine oil will be dependant on how hot the items are. ( i would say anyone saying that their parts are clear have used nowhere near enough heat and wont be long till they corrode again) One last thing to bear in mind that oil hardening steal is the same process but needs more heat than bluing. You could find that you have actually performed that instead if you use too much heat which can inturn make the bolts more likely to snap. Its all a case of consistency and doing it the same everytime when you've found the sweet spot. Anyway like i said great vid and you have gained a new sub 😊

[billywhizz]

Great idea of recycling nuts bolts washers Martin

[ScottiDaniel]

That really worked a treat, bolts look brand new, glad stickers and keyring arrived 👍

[bendude]

That’s actually a really nice idea I’ll give it a go next time.

[paulstir]

what a difference Martin great restore job, great useful video as well full of great information, thanks for sharing, ps my workshop build is coming on nicely exciting times ahead .

[derbyjohn]

What a fantastic trick of the trade amazing 👍🏻👍🏻. Looked like a mad scientist with the smoke 😂😂

[larsfrandsen]

Love your channel, mate! Lots of good tips for restoring motorcycles and such. Also love the reviews of stuff from my childhood. Thanks!