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SCM435 HEX BOLT (PART. THREAD), STEEL CLASS 10.9 BLACK
 
 Material  Iron (SCM435)
It is called chrome molybdenum steel, which is an alloy steel for machine structural use, and is an alloy steel with improved hardenability.
Since it contains Cr (chromium), it has better corrosion resistance than 'iron'.
It is stronger than 'Iron' and 'S45C'




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