PRAD system PSolRutiAonDtoosl ystem Specification of corresponding standard blanks (for European market) DIN376 TYPE Main size designation and specification ① ② L ℓ ℓn ℓs Ds K ℓk metric unified (reference) M4×0.7 63 13 - - 2.8 2.1 5 M4.5×0.75 70 14 - - 3.5 2.7 6 M5×0.8 70 14 - - 3.5 2.7 6 M6×1 80 15 - - 4.5 3.4 6 M8×1.25 90 19 44 46 6 4.9 8 M10×1.5 100 23 49 51 7 5.5 8 M12×1.75 110 26 54 56 9 7 10 PRAD SYSTEM M14×2 9/16-12UNC 110 26 54 56 11 9 12 M16×2 5/8-11UNC 110 26 54 56 12 9 12 M18×2.5 125 33 61 64 14 11 14 M20×2.5 140 33 69 71 16 12 15 M22×2.5 7/8-9UNC 140 33 69 71 18 14.5 17 M24×3 160 37 78 82 18 14.5 17 M27×3 160 37 78 82 20 16 19 M30×3.5 1'1/8-7UNC 180 44 88 92 22 18 21 TYPE:d TYPE:e PPRRAADD-5- 762