M | |
ISO Metric | |
Diameter | Pitch (mm) | Pre-drilling diameter (mm) | 1,0 | 0,25 | 0,75 | 1,2 | 0,25 | 0,95 | 1,4 | 0,3 | 1,1 | 1,5 | 0,3 | 1,2 | 1,6 | 0,35 | 1,25 | 1,7 | 0,35 | 1,35 | 1,8 | 0,35 | 1,45 | 2,0 | 0,4 | 1,6 | 2,2 | 0,45 | 1,75 | 2,5 | 0,45 | 2,05 | 3,0 | 0,5 | 2,5 | 3,5 | 0,6 | 2,9 | 4,0 | 0,7 | 3,3 | 4,5 | 0,75 | 3,7 | 5,0 | 0,8 | 4,2 | 6,0 | 1,0 | 5,0 | 7,0 | 1,0 | 6,0 | 8,0 | 1,25 | 6,8 | 9,0 | 1,25 | 7,8 | 10,0 | 1,5 | 8,5 | 11,0 | 1,5 | 9,5 | 12,0 | 1,75 | 10,2 | 14,0 | 2,0 | 12,0 | 16,0 | 2,0 | 14,0 | 18,0 | 2,5 | 15,5 | 20,0 | 2,5 | 17,5 | 22,0 | 2,5 | 19,5 | 24,0 | 3,0 | 21,0 | 27,0 | 3,0 | 24,0 | 30,0 | 3,5 | 26,5 | 33,0 | 3,5 | 29,5 | 36,0 | 4,0 | 32,0 | 39,0 | 4,0 | 35,0 | 42,0 | 4,5 | 37,5 | 45,0 | 4,5 | 40,5 | 48,0 | 5,0 | 43,0 | 52,0 | 5,0 | 47,0 |
| | MF | |
ISO Metric Fine | Diameter x Pitch | Pre-drilling diameter (mm) | 3 x 0,35 | 2,65 | 4 x 0,5 | 3,5 | 5 x 0,5 | 4,5 | 6 x 0,75 | 5,2 | 7 x 0,75 | 6,2 | 8 x 0,75 | 7,2 | 8 x 1,0 | 7,0 | 9 x 1,0 | 8,0 | 10 x 0,75 | 9,2 | 10 x 1,0 | 9,0 | 10 x 1,25 | 8,8 | 11 x 1,0 | 10,0 | 12 x 1,0 | 11,0 | 12 x 1,25 | 10,8 | 12 x 1,5 | 10,5 | 14 x 1,0 | 13,0 | 14 x 1,25 | 12,8 | 14 x 1,50 | 12,5 | 15 x 1,0 | 14,0 | 15 x 1,5 | 13,5 | 16 x 1,0 | 15,0 | 16 x 1,5 | 14,5 | 18 x 1,0 | 17,0 | 18 x 1,5 | 16,5 | 18 x 2,0 | 16,0 | 20 x 1,0 | 19,0 | 20 x 1,5 | 18,5 | 20 x 2,0 | 18,0 | 22 x 1,0 | 21,0 | 22 x 1,5 | 20,5 | 22 x 2,0 | 20,0 | 24 x 1,0 | 23,0 | 24 x 1,5 | 22,5 | 24 x 2,0 | 22,0 | 25 x 1,0 | 24,0 | 25 x 1,5 | 23,5 | 26 x 1,5 | 24,5 | 27 x 1,5 | 25,5 | 27 x 2,0 | 25,0 | 28 x 1,5 | 26,5 | 30 x 1,5 | 28,5 | 30 x 2,0 | 28,0 | 32 x 1,5 | 30,5 | 33 x 2,0 | 31,0 | 35 x 1,5 | 33,5 | 36 x 1,5 | 34,5 | 36 x 2,0 | 34,0 | 36 x 3,0 | 33,0 | 38 x 1,5 | 36,5 | 39 x 3,0 | 36,0 | 40 x 1,5 | 38,5 | 42 x 1,5 | 40,5 | 45 x 1,5 | 43,5 | 50 x 1,5 | 48,5 |
| | UNC | Unified Coarse | UNC size | Pre-drilling diameter (mm) | nr 1 - 64 | 1,5 | nr 2 - 56 | 1,8 | nr 3 - 48 | 2,0 | nr 4 - 40 | 2,3 | nr 5 - 40 | 2,6 | nr 6 - 32 | 2,7 | nr 8 - 32 | 3,5 | nr 10 - 24 | 3,8 | nr 12 - 24 | 4,5 | 1/4 - 20 | 5,1 | 5/16 - 18 | 6,5 | 3/8 - 16 | 7,9 | 7/16 - 14 | 9,3 | 1/2 - 13 | 10,7 | 9/16 - 12 | 12,3 | 5/8 - 11 | 13,5 | 3/4 - 10 | 16,5 | 7/8 - 9 | 19,3 | 1 - 8 | 22,25 | 1 1/8 - 7 | 25,0 | 1 1/4 - 7 | 28,0 | 1 3/8 - 6 | 30,75 | 1 1/2 - 6 | 34,0 | 1 3/4 - 5 | 39,5 | 2 - 4 1/2 | 45,0 |
| | UNF | Unified Fine | UNF size | Pre-drilling diameter (mm) | nr 0 - 80 | 1,2 | nr 1 - 72 | 1,5 | nr 2 - 64 | 1,8 | nr 3 - 56 | 2,1 | nr 4 - 48 | 2,4 | nr 5 - 44 | 2,6 | nr 6 - 40 | 2,9 | nr 8 - 36 | 3,5 | nr 10 - 32 | 4,0 | nr 12 - 28 | 4,6 | 1/4 - 28 | 5,4 | 5/16 - 28 | 6,9 | 3/8 - 24 | 8,4 | 7/16 - 20 | 9,9 | 1/2 - 20 | 11,5 | 9/16 - 18 | 13,0 | 5/8 - 18 | 14,5 | 3/4 - 16 | 17,5 | 7/8 - 14 | 20,5 | 1 - 2 1 | 23,25 | 1 - 4 1 | 23,25 | 1 1/8 -12 | 26,5 | 1 1/4 - 12 | 29,75 | 1 3/8 - 12 | 33,0 | 1 1/2 - 12 | 36,0 |
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