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UNS 1.625-56 (1 5/8") 2A-2B
Thread Series, Bolt Diameter, Threads per Inch, Size, Bolt Fit, Nut Fit
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Tensile Strength of Bolt Material:

 60,000

  p.s.i.

Tensile Strength of Nut Material:

 60,000

  p.s.i.

Desired Tensile Stress in Bolt:

 30,000

  p.s.i.
     
Length of Engagement:  0.160714285714286
 9.00		  inches
 × pitch

Nut Factor:

 0.2

  

Static Load:

 0

  pounds
Tensile Stress in Bolt Usual Severe Root

Tensile Stress Area:

 2.030 2.019 2.015 sq.in.
Tensile Stress due to Preload: 30,000 30,000 30,000 p.s.i.

Tensile Stress due to Static Load:

 0 0 0 p.s.i.

Tensile Stress Sum:

 30,000 30,000 30,000 p.s.i.
 

Preload:

 60,893 60,560 60,455 pounds
Torque Required to Induce Preload: 1,649
 19,790		  1,640
 19,682		  1,637
 19,648		  ft-lbs
 in-lbs
 
Engagement to Protect Bolt Thread: 1.717
96.18		 1.708
 95.65		 1.705
 95.49		 inches
 ×pitch
Engagement to Protect Nut Thread: 1.407
78.77		 1.399
 78.34		  1.396
 78.20		  inches
 ×pitch
 
Bolt Thread Shear Stress
Bolt Thread Shear Stress Area: 0.380 0.380 0.380 sq.in.
Stress due to Preload: 160,297 159,419 159,142 p.s.i.
Stress due to Static Load: 0 0 0 p.s.i.
Bolt Thread Shear Stress Sum: 160,297 159,419 159,142 p.s.i.
 
Nut Thread Shear Stress
Nut Thread Shear Stress Area: 0.464 0.464 0.464 sq.in.
Stress due to Preload: 131,282 130,563 130,336 p.s.i.
Stress due to Static Load: 0 0 0 p.s.i.
Nut Thread Shear Stress Sum: 131,282 130,563 130,336 p.s.i.
 
Allowance: 0.0010 inches           Pitch: 0.0179 inches
 
           Bolt             |           Nut
 Minimum  Maximum Tolerance | Minimum  Maximum Tolerance

Major Diameter:

 1.6199 - 1.6240  (0.0041) |  1.6250 - 1.6320* (      ) inches

Pitch Diameter:

 1.6090 - 1.6124  (0.0034) |  1.6134 - 1.6178  (0.0044) inches

Minor Diameter:

 1.5974*- 1.6047  (      ) |  1.6057 - 1.6100  (0.0043) inches
* No official specification exists.