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  #1 (permalink)  
Old 07-01-2022, 03:23 PM
1985 CCX's Avatar
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Default SS 18-8 bolts 304 grade?

Anyone know the bolt grade for SS 18-8
I think SS304
?????
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Old 07-01-2022, 05:44 PM
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Found the attached article which might provide some clarification for the distinctions:

https://www.marshfasteners.com/diffe...vs-304-vs-316/
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Old 07-01-2022, 07:03 PM
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SS is about a grade 5 equivalent....
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Old 07-02-2022, 04:55 AM
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It varies, but it is between a grade 2 and a grade 5.
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Old 07-02-2022, 07:14 AM
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The Bumax Ultra stainless fasteners are the worlds strongest.
Ultra refers to the cost.
Equivalent to grade 8 or better developed in Sweden for undersea robots.
I’m using them on the a-arm alignment/antidive brackets.
The brackets are 304 stainless steel.
Electro polished, shine like chrome forever.
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Last edited by sunman; 07-02-2022 at 04:55 PM.. Reason: It said “developed for undersea robots in Sweden”
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Old 07-02-2022, 09:59 AM
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I think ARP has some strong SS bolts.....
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Old 07-02-2022, 06:59 PM
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Quote:
Originally Posted by 1985 CCX View Post
Anyone know the bolt grade for SS 18-8
I think SS304
?????
A 304 stainless steel has 18% chromium and 8% nickel content, so unless there is anything more specific to add to your question, 18-8 and 304 can be regarded as the same thing.

Cheers!
Glen
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Old 07-02-2022, 08:54 PM
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18-8, 304 hardware is closer to a 2, it tarnishes, corrodes and the threads gall. Needs nickel anti seize on every nut.
I electro polish 304 angle to prevent degradation.
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Last edited by sunman; 07-02-2022 at 10:00 PM..
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