b'c LevisH ooKsClevis hooks feature a 15.9mm clevis for mounting to a standard Starrett clevis adapter.These hooks have a locking nut so you can rotate and position the hook for proper axial alignment.Hooks are available in a variety of sizes.Steel construction.c LevisH ooKsSTEEL, HARDENED For general-purpose tensile testing applications Fasten to 15.9mm clevis adapters Operating Temperatures 32 to 158F (0 to 70C)dApters ookClevis HooksLoad Capacity Hook WireA Hook Length B Hook Radius C Supply Clevis SizeModel No. N KGF LBF Material mm in mm in mm each mm A HHOOK-231-3 350 35 78 Steel 3 2.8 70 0.2 6 1 15.9HOOK-231-5 1kN 100 225 Steel 5 3.3 83 0.4 10 1 15.9HOOK-231-8 2.5kN 250 560 Steel 8 4.7 120 0.6 16 1 15.9HOOK-231-12 6kN 600 1,350 Steel 12 6.4 161.6 0.9 24 1 15.9d iMensions 15.9HOOK-231-5BHOOK-231-8C170'