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Author Question: What drives a ballistic concrete nail in? What will be an ideal ... (Read 24 times)

sjones

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on: Jul 26, 2018
What drives a ballistic concrete nail in?
 
  What will be an ideal response?

Question 2

Explain the significance of each part of this bolt specification. 2 x  NC-20 hex head
 
  What will be an ideal response?


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coyin

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Reply #1 on: Jul 26, 2018
Answer to Question 1

A small charge that resembles a 22-caliber blank cartridge.

Answer to Question 2

The first dimension given, 2 inches is the length of the bolt. The second dimension,  inch, is the outside or major diameter of the bolt. The letters NC refer to the fact that this a national coarse threaded bolt. It has twenty threads per inch, and the bolt has a hex head.


sjones

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Reply 2 on: Jul 26, 2018
Excellent

daiying98

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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