When it comes to electrical installations, perhaps one of the most violated sections of the National Electrical Code has been and continues to be proper torquing of electrical connections."
Here are some links on breaker torque specs.
Also refer to Informative Annex "I" of the 2020 NFPA 70 (National Electrical Code).
Also note that many if not most breakers have the torque requirements on a label, or molded into the plastic body.
2007 Country Coach Tribute; Cat C9 400; 2012 Ford Edge toad; Roadmaster Blackhawk 2 10,000 lb tow bar; Demco AF1 Braking System; 2007 BMW K1200LT Hannigan Trike Conversion; Member, IEEE, NFPA, PMI, NRC SRO (Ret).