2004/SP1 Tapped Holes

- K
- Kman
  
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posted
20 years ago

Fri, Nov 28, 2003 4:07 PM

The 5/8-18 drill size applied in hole wizard is incorrect The hole wizard uses 0.578 inches and it should be 0.562 (this error is significant if someone is concerned about thread shear strength)

Kman

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- W
- Wayne Tiffany
  
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posted
20 years ago

Fri, Nov 28, 2003 5:27 PM

My Machinery's Handbook lists .5781" tap drill size for a 75% thread. If you drilled a .562" hole, you would have more thread engagement.

- D
- David Janes
  
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posted
20 years ago

Fri, Nov 28, 2003 9:31 PM

3B range (1.5D to 3D) may vary from .571 to .575.

David Janes

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