■ for Unified Threads

unit: mm

Major Minor Major Minor

Pitch Diameter Pitch Diameter

Diameter Diameter Diameter Diameter

Size Class Upper Lower Size Class Upper Lower

Tolerance Tolerance Tolerance Tolerance

Basic Size Basic Size Basic Size Basic Size Basic Size Basic Size

(μm)(μm)(μm)(μm)
P24020P36040
G564515/ 16 - 18 UNC2B7.9387.02149236.411

No. 6 - 32 UNC 3.505 2.990 2.647

2B3818GH112.70
GH112.70P24020
P240255/ 16 - 24 UNF2B7.9387.24946206.792
G56451GH112.70

No. 6 - 40 UNF 3.505 3.094 2.817

2B 36 16 P2 40 20

5/ 16 - 32 UNEF 7.938 7.422 7.079

GH112.702B4418
P24020P36040
G676643/ 8 - 16 UNC2B9.5258.49453257.805

No. 8 - 32 UNC 4.166 3.650 3.307

2B3918GH112.70
GH112.70P36040
P240203/ 8 - 24 UNF2B9.5258.83748208.379
G56451GH225.412.7

No. 8 - 36 UNF 4.166 3.708 3.401

2B 38 17 P2 40 20

3/ 8 - 32 UNEF 9.525 9.009 8.666

GH112.702B4618
P24020P36040
G676647/ 16 - 14 UNC2B11.1129.93456279.149

No. 10 - 24 UNC 4.826 4.138 3.680

2B4220GH112.70
GH112.70P36040
P240207/ 16 - 20 UNF2B11.11210.28751229.738
G56451GH112.70

No. 10 - 32 UNF 4.826 4.310 3.967

2B40187/ 16 - 28 UNEFP211.11210.523402010.130
GH112.70P36040
P240201/ 2 - 13 UNC2B12.70011.430582810.584
No. 12 - 24 UNC 2B5.4864.79843204.341GH112.70
GH112.70P36040
P240201/ 2 - 20 UNF2B12.70011.874522311.326
No. 12 - 28 UNF 2B5.4864.89742194.503GH112.70
GH112.701/ 2 - 28 UNEFP212.70012.111402011.717
No. 12 - 32 UNEF P25.4864.97140204.627P36040
P240209/ 16 - 12 UNC2B14.28812.913602911.996
G78976GH338.125.4
1/4 - 20 UNC6.3505.5244.976
2B4622P36040
GH112.709/ 16 - 18 UNF2B14.28813.371542312.761
P24020GH225.412.7
G676649/ 16 - 24 UNEFP214.28813.599402013.142
1/4 - 28 UNF6.3505.7615.367
2B4319
GH112.70
P24020
1/4 - 32 UNEF6.3505.8345.491
2B4218