PRAD system Solution tool PRAD system Main size designation and Overall length of standard type and long type, and Applicable class specification corresponding Materials Max. Length of thread TYPE standard type: L ℓ ℓn ℓs Ds K ℓk length Cutting Forming (reference) 110 26 - 56 12.5 10 13 26 ~P5 ~G9 f ○◎ 33 e 100 - 51 14 11 14 33 ~P5 ~G8 ○ 18 e-1 13 125 33 - 64 14 11 14 33 ~P5 ~G8 f ○◎ 33 e 100 - 51 14 11 14 33 ~P5 ~G8 PRAD SYSTEM ○ 18 16 e-1 13 125 33 - 64 14 11 14 33 ~P5 ~G8 f ○◎ 33 g 105 - 50 15 12 15 33 ~P5 ~G12 ○ 18 g-1 140 33 - 71 15 12 15 33 ~P5 ~G12 h ○◎ 33 g 105 - 50 15 12 15 33 ~P5 ~G12 ○ 18 g-1 140 33 - 71 15 12 15 33 ~P5 ~G12 h ○◎ 115 33 g - 55 17 13 16 33 ~P5 ~G12 ○ 19 g-1 140 33 - 71 17 13 16 33 ~P5 ~G12 h ○◎ PRAD-22