(Part B) Machinerys Handbook 31st Edition Pages 1484-2979

0.041667 P

0.041667 P

Internal Thread (Nut)

Internal Thread (Nut)

1 / 2 Tolerance on Major Diameter of Screw

1 / 2 Tolerance on Major Diameter of Screw

0.125 P

0.125 P

30 °

30 °

60 °

60 °

1 / 2 PD Tolerance on Nut 1 / 2 PD Tolerance on Screw

1/2 PD Tolerance on Nut 1/2 Allowance (Screw only) 1/2 PD Tolerance on Screw

0.25 P

0.250 P

0.125 P

0.125 P

External Thread (Screw)

External Thread (Screw)

Limits of Size Showing Tolerances and Crest Clearances for Unified Classes 3A and 3B and American National Classes 2 and 3

Limits of Size Showing Tolerances, Allowances (Neutral Space), and Crest Clearances for Unified Classes 1A, 2A, 1B, and 2B

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