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  • 1/4
  • 5/16
  • 3/8
  • 7/16
  • 1/2
  • 9/16
  • 5/8
  • 3/4
  • 7/8
  • 1
  • 1-1/8
  • 1-1/4
  • 1-3/8
  • 1-1/2
  • 1-5/8
  • 1-3/4
  • 1-7/8
  • 2
  • 2-1/4
  • 2-1/2
  • 2-3/4
  • 3
  • 3-1/4
  • 3-1/2
  • 3-3/4
  • 4
ASME B 18.31.2 - 2014 Continuous Thread Stud(A193 / A320 / A437 / A453/A540/A1014)(Inch Series) [Table 1]
Thread Size
d
1/4
d
PP UNC
UNF
8UN
U UNC min
max
UNF min
max
8UN min
max
0.2500
20
28
-
0.050
0.100
0.036
0.071
-
-