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It is neither safe nor legal. At best, it’s an incomplete draft. At worst, it contains malware designed to infect industrial control systems (a real threat in OT environments).

: The specification now mandates stricter bolting requirements, specifically citing API 20E for alloy/carbon steel and API 20F for corrosion-resistant bolting.

https://www.api.org/ /media/files/ publicfiles/ standards/online/cop/ api_spec_6a_21st_edition_2019. pdf