
| Overall length Chamfer+ full�thread | Thread� length | Thread�+�Neck length | Shank length | Shank dia. | Size�of square | Length�of square |
| L ℓt | ℓ | ℓn | ℓs | Ds | K | ℓk |
DIN PM-SP SpiralFlutedTapsforHard-to-MachineMaterials
| Size | Class | Code | Chamfer | L (mm) | ℓt (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No.�of flutes | TYPE |
| M18×1.5 | ISO2X | SM018OBDPB | 2.75P | 110 | - | 24 | - | 56 | 14 | 11 | 14 | 4 | 3 |
| M20×2.5 | ISO2X | SG020RBDPB | 2.75P | 140 | - | 33 | - | 71 | 16 | 12 | 15 | 4 | 3 |
| M20 × 1.5 | ISO2X | SM020OBDPB | 2.75P | 125 | - | 24 | - | 64 | 16 | 12 | 15 | 4 | 3 |
| M22 × 2.5 | ISO2X | SG022RBDPB | 2.75P | 140 | - | 33 | - | 71 | 18 | 14.5 | 17 | 4 | 3 |
| M22 × 1.5 | ISO2X | SM022OBDPB | 2.75P | 125 | - | 24 | - | 64 | 18 | 14.5 | 17 | 4 | 3 |
| M24 × 3 | ISO2X | SG024SBDPB | 2.75P | 160 | - | 37 | - | 82 | 18 | 14.5 | 17 | 4 | 3 |
| M24 × 2 | ISO2X | SM024QBDPB | 2.75P | 140 | - | 27 | - | 71 | 18 | 14.5 | 17 | 4 | 3 |
| M24 × 1.5 | ISO2X | SM024OBDPB | 2.75P | 140 | - | 27 | - | 71 | 18 | 14.5 | 17 | 4 | 3 |
| M27 × 3 | ISO2X | SG027SBDPB | 2.75P | 160 | - | 37 | - | 82 | 20 | 16 | 19 | 4 | 3 |
| M27 × 2 | ISO2X | SM027QBDPB | 2.75P | 140 | - | 27 | - | 71 | 20 | 16 | 19 | 4 | 3 |
| M27 × 1.5 | ISO2X | SM027OBDPB | 2.75P | 140 | - | 27 | - | 71 | 20 | 16 | 19 | 4 | 3 |
| M30 × 3.5 | ISO2X | SG030TBDPB | 2.75P | 180 | - | 44 | - | 92 | 22 | 18 | 21 | 4 | 3 |
| M30 × 2 | ISO2X | SM030QBDPB | 2.75P | 150 | - | 27 | - | 77 | 22 | 18 | 21 | 4 | 3 |
| M30 × 1.5 | ISO2X | SM030OBDPB | 2.75P | 150 | - | 27 | - | 77 | 22 | 18 | 21 | 4 | 3 |