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14th October 2019, 15:14 | #1 |
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Rover 75 Saloon & Tourer Join Date: Sep 2012
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Is this bolt suitable?
Due to the tempreture fluctuation of hot and cold on an exhaust so close to the engine is this bolt ok for holing the downpipe/silencer to the manifold?
https://www.allfix.co.uk/products/ht-high-tensile-bolt-steel-zinc-plated-metric/HTB0ZCM100X0070 they do a 75mm long bolt. I've been advised to use a brass nut as it wont seize onto the bolt. Will the above bolt be ok with the heat fluctuation? macafee2 |
14th October 2019, 16:57 | #2 |
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Rover75 and Mreg Corsa. Join Date: Nov 2006
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I wouldn't worry about 'heat fluctuation' quite honestly. The most relevant thing is to use something that will unscrew again in five years' time. I use basic A2 stainless steel nuts and bolts on the exhaust system, including the manifold studs (which get hotter than the rest). I've never, ever had a problem.
TC |
15th October 2019, 06:35 | #3 |
Gets stuck in
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No, above 60C the zinc undergoes a polarity reversal and becomes anodic to the steel.
This essentially means that rather than the zinc corroding to protect the steel, the steel rusts to protect the zinc - not what you want. Either unplated steel bolts or stainless are the way to go here. |
15th October 2019, 21:36 | #4 |
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R75 Saloon. Join Date: Feb 2009
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That price list seems odd-------------
1 - 10 £23.99 (exc VAT) 11 - 25 £27.86 (exc VAT) 26 - 50 £20.12 (exc VAT) 51 - 100 £16.25 (exc VAT) 101 or more £14.71 (exc VAT) |
15th October 2019, 21:51 | #5 |
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They come in packs of 100. so 1-10 packs of 100 are £23.99 per pack, buy 11-25 packs they are 27.86 per pack and so on.
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It is not gloss primer .............. it is duct tape silver! |
16th October 2019, 07:48 | #6 |
This is my second home
Rover 75 Saloon & Tourer Join Date: Sep 2012
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I asked about the price not realising they were for packs of 100 but they do them singerly (new word) and are only about 50p each. Also got them to use Royal Mail instead of UPS as UPS was about £8 delivery but my items are less then half of that
worth keeping a note of this place for nuts and bolts in the feature. macafee2 |
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