SizeClassCodeChamfer L (inch)ℓ (inch)ℓn (inch)ℓs (inch)Ds (inch)K (inch)ℓk (inch)No.�of flutesTYPE
M12 × 1.25D751011010902.5P4.3310.591-2.2050.3670.2750.437l 33
M14 × 2D951011011002.5P4.3310.709-2.2050.4290.3220.533
M14 × 1.5D851011011022.5P4.3310.551-2.2050.4290.3220.533
M16 × 2D951011011142.5P4.3310.709-2.2050.480.360.56233
M16 × 1.5D851011011162.5P4.3310.551-2.2050.480.360.56233
M18 × 2.5D951011011282.5P4.9210.787-2.520.5420.4060.62543
M18 × 1.5D851011011302.5P4.9210.551-2.520.5420.4060.62533
M20 × 2.5D951011011412.5P5.5120.787-2.7950.6520.4890.68743
M20 × 1.5D851011011442.5P5.5120.551-2.7950.6520.4890.68733
M22 × 2.5D951011011562.5P5.5120.787-2.7950.6970.5230.7543
M22 × 1.5D851011011582.5P5.5120.551-2.7950.6970.5230.7533
M24 × 3D1051011011672.5P6.2990.984-3.2280.760.570.7543
M24 × 1.5D851011011702.5P6.2990.709-3.2280.760.570.7533
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No.5-40UNCGH251011030212.5P2.2050.1970.7361.3390.1410.110.18721
No.5-44UNFGH251011030222.5P2.2050.1970.7361.3390.1410.110.18721
No.6-32UNCGH251011030232.5P2.2050.2760.7481.3390.1410.110.18721
No.6-40UNFGH251011030242.5P2.2050.2760.7481.3390.1410.110.18721
No.8-32UNCGH351011030292.5P2.480.2760.8271.5350.1680.1310.2521
No.8-36UNFGH351011030302.5P2.480.2760.8271.5350.1680.1310.2521
No.10-24UNCGH351011030392.5P2.7560.3540.9451.6540.1940.1520.2521
No.10-32UNFGH351011030412.5P2.7560.3540.9451.6540.1940.1520.2521
No.12-24UNCGH351011030472.5P3.150.3540.9841.9530.220.1650.28121
No.12-28UNFGH351011030482.5P3.150.3540.9841.9530.220.1650.28121
1/4-20UNCGH351011030582.5P3.150.4331.1811.7130.2550.1910.31221
1/4-20UNCGH551013030582.5P3.150.4331.1811.7130.2550.1910.31221
1/4-28UNFGH351011030622.5P3.150.4331.1811.7130.2550.1910.31221
1/4-28UNFGH551013030622.5P3.150.4331.1811.7130.2550.1910.31221
5/16-18UNCGH551011030712.5P3.5430.4721.3781.8310.3180.2380.37532
3/8-16UNCGH551011030822.5P3.9370.5121.5352.0280.3810.2860.43732
7/16-14UNCGH551011030982.5P3.9370.512-2.0080.3230.2420.40633
1/2-13UNCGH551011031112.5P4.3310.591-2.2050.3670.2750.43733
9/16-12UNCGH551011031262.5P4.3310.709-2.2050.4290.3220.533
5/8-11UNCGH551011031382.5P4.3310.709-2.2050.480.360.56233