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How To Restore Rusty Bolts And Stop Them Rusting Again

80K views · Jan 24, 2022 · Autos & Vehicles

retrorestore

88K subscribers

Comments · 165

@MrJozza65 · 4 years ago (edited)
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) ?
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@NigelWoods-u6v · 2 years ago
Heating bolts cherry red will change the temper of them.
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@docpugh · 11 months ago
I’m just here to listen to the cockney accent. I love it!
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@alant5335 · 4 years ago
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.
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@sixandtwothrees · 4 years ago
Linseed oil is the one traditionally used for hot quenching. Smells better, too!
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@nigelbarton8350 · 4 years ago
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 😁
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@Sealacamp · 3 years ago
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.
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@mensaswede4028 · 9 months ago
They also make room-temperature black-oxide (magnetite) solution that you just brush on to a clean part to turn it black.  That way, you don’t ruin the heat-treating on the bolt by heating it cherry-red hot.
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@SalvageworxCSG · 6 days ago
Absolute brilliance this video thank you very much.
@euan2516 · 4 years ago
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 👍
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@vijayantgovender2045 · 4 years ago
Thank you Martin enjoy watching your videos I am watching from South Africa
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@derbyjohn972 · 4 years ago
What a fantastic trick of the trade amazing 👍🏻👍🏻. Looked like a mad scientist with the smoke 😂😂
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