Overall length Chamfer+ full�threadThread� lengthThread�+�Neck lengthShank lengthShank dia.Size�of squareLength�of square
L ℓtℓnℓsDsKℓk

DIN PM-SP SpiralFlutedTapsforHard-to-MachineMaterials

SizeClassCodeChamferL (mm)ℓt (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)No.�of flutesTYPE
M18×1.5ISO2XSM018OBDPB2.75P110-24-5614111443
M20×2.5ISO2XSG020RBDPB2.75P140-33-7116121543
M20 × 1.5ISO2XSM020OBDPB2.75P125-24-6416121543
M22 × 2.5ISO2XSG022RBDPB2.75P140-33-711814.51743
M22 × 1.5ISO2XSM022OBDPB2.75P125-24-641814.51743
M24 × 3ISO2XSG024SBDPB2.75P160-37-821814.51743
M24 × 2ISO2XSM024QBDPB2.75P140-27-711814.51743
M24 × 1.5ISO2XSM024OBDPB2.75P140-27-711814.51743
M27 × 3ISO2XSG027SBDPB2.75P160-37-8220161943
M27 × 2ISO2XSM027QBDPB2.75P140-27-7120161943
M27 × 1.5ISO2XSM027OBDPB2.75P140-27-7120161943
M30 × 3.5ISO2XSG030TBDPB2.75P180-44-9222182143
M30 × 2ISO2XSM030QBDPB2.75P150-27-7722182143
M30 × 1.5ISO2XSM030OBDPB2.75P150-27-7722182143