SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
For Unified Threadsl
No.2-56UNCGH2Y826234.5P1.750.2560.4370.1410.110.18721
No.3-48UNCGH2Y826004.5P1.8120.2950.50.1410.110.18721
GH2Y82601
No.4-40UNCGH3 GH4Y82602 Y826124.5P1.8750.3350.5620.1410.110.18721
GH5Y82634
No.4-48UNFGH2Y826834.5P1.8750.3350.5620.1410.110.18721
No.5-40UNCGH2Y826034.5P1.9370.3740.6250.1410.110.18731
GH2Y82604
GH3Y82605
No.6-32UNCGH4 GH5 GH6Y82608 Y82635 Y826594.5P20.4130.6870.1410.110.18731
GH7Y82665
No.6-40UNFGH2 GH3Y82684 Y826424.5P20.4130.6870.1410.110.18731
GH2Y82606
GH3Y82607
No.8-32UNCGH4 GH5Y82629 Y826374.5P2.1250.4530.750.1680.1310.2531
GH6Y82660
GH7Y82667
No.8-36UNFGH2Y826864.5P2.1250.4530.750.1680.1310.2531
GH3Y82609
No.10-24UNCGH5 GH6Y82639 Y826904.5P2.3750.5310.8750.1940.1520.2531
GH7Y82669
GH2Y82611
GH3Y82610
No.10-32UNFGH4 GH5 GH6Y82630 Y82640 Y826614.5P2.3750.5310.8750.1940.1520.2531
GH7Y82670
No.12-24UNCGH3Y826884.5P2.3750.5710.9370.2200.1650.28131
No.12-28UNFGH3Y826894.5P2.3750.5710.9370.2200.1650.28131
GH3Y82613
1/4-20UNCGH5 GH6Y82643 Y825904.5P2.50.59110.2550.1910.31232
GH7Y82673
GH3 GH4Y82614 Y82631
1/4-28UNFGH5 GH6Y82644 Y826624.5P2.50.59110.2550.1910.31232
GH7Y82674
5/16-18UNCGH3 GH5 GH7Y82615 Y82645 Y826754.5P2.7180.6691.1250.3180.2380.37533
5/16-24UNFGH3 GH4Y82616 Y826324.5P2.7180.6691.1250.3180.2380.37533