f you don’t know how to choose the correct hooks, just tell us your drive group of the cranes, please contact with us.?We can supply hooks as forging only or machine them to your exact requirements. We can also manufacturer the full assemblies complete with nut and collRamshorn shank hook According to DIN15402Technical Specifications Hook No. Diamension(mm) a1 a2 a3 b1 d1 e f1 h L Weight（kg） 6 71 56 92 60 60 160 301 75 375 19.3 8 80 63 103 67 67 182 337 85 415 29.6 10 90 71 116 75 75 192