SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
M12×1.25D5Y74626 Y740262.5P 1.5P3.3750.551-0.3670.2750.43734
M14×2D7Y74629 Y740292.5P 1.5P3.5930.709-0.4290.3220.534
M14×1.5D6Y74628 Y740282.5P 1.5P3.5930.551-0.4290.3220.534
M16×2D7Y74631 Y740312.5P 1.5P3.8120.709-0.4800.360.56234
M16×1.5D6Y746302.5P3.8120.551-0.4800.360.56234
M18×2.5D7Y746332.5P4.0310.787-0.5420.4060.62544
M18×1.5D6Y746322.5P4.0310.551-0.5420.4060.62544
M20×2.5D7Y746352.5P4.4680.787-0.6520.4890.68744
M24×3D8Y746392.5P4.9060.984-0.7600.570.7544
For Unified Threads
No.2-56UNCGH2Y846232.5P1.750.1570.4370.1410.110.18721
No.3-48UNCGH2Y846002.5P1.8120.1970.50.1410.110.18721
GH2Y84601 Y840012.5P 1.5P
No.4-40UNCGH3 GH4 GH5Y84602 Y84002 Y84629 Y846342.5P 1.5P 2.5P1.8750.2360.5620.1410.110.18721
No.4-48UNFGH2Y846832.5P1.8750.2360.5620.1410.110.18721
No.5-40UNCGH2Y84603 Y840032.5P 1.5P1.9370.2360.6250.1410.110.18731
GH2Y84604 Y840042.5P 1.5P
No.6-32UNCGH3 GH4Y84605 Y84005 Y846362.5P 1.5P20.2760.6870.1410.110.18731
GH5 GH6Y84635 Y846592.5P
GH7Y84665
No.6-40UNFGH2 GH3Y84684 Y84084 Y846852.5P 1.5P 2.5P20.2760.6870.1410.110.18731
No.8-32UNCGH2 GH3 GH4 GH5 GH6Y84606 Y84607 Y84007 Y84638 Y84637 Y846602.5P 1.5P 2.5P2.1250.2760.750.1680.1310.2531
GH7Y84667
No.8-36UNFGH3Y846872.5P2.1250.2760.750.1680.1310.2531
No.10-24UNCGH2 GH3 GH5Y84624 Y84609 Y84009 Y84639 Y840392.5P 1.5P 2.5P 1.5P2.3750.3540.8750.1940.1520.2531
GH6 GH7Y84690 Y846692.5P