PRAD system Solution tool PRAD system Overall length of standard type and long type, and Length of standard type corresponding Materials Applicable class Max. Length of thread TYPE standard type: L ℓ ℓn ℓs Ds K ℓk length Cutting Forming (reference) 22 70 - (46) 6.2 5 8 22 〜P6 〜G8 m 19 13 24 75 - (48) 7 5.5 8 24 〜P6 〜G8 m 22 19 PRAD SYSTEM 30 24 82 - (49) 8.5 6.5 9 30 〜P7 〜G10 m 22 19 13 PRAD-38