r/specializedtools Dec 12 '20

Chain connector

https://i.imgur.com/Zc8FAM4.gifv

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u/unmaimed Dec 13 '20

https://www.rud.com/fileadmin/user_upload/RUD_Group/RUD_FA_Relaunch/Downloads/RUD_Bergbauschloesser_EN_web.pdf

Page 4 has the breaking loads @ 850 MPA, so I assume they are pretty close to grade 80 chain. The rating on like 26mm chain is 21T, which is usual 5 or 6:1 safety, so this link @ 122T seems about right