Anyone determine what the definition/properties of this bolt

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In summary, the conversation is discussing a bolt with the callout 3/4 x 4 CS-N-LWa 3/4-4. It is being determined that the bolt has one coarse thread and is not a UN series thread. The context and use of the bolt is being questioned. It is suggested that it could be an ACME thread or a rebar fitting, and the CS-N-LW could refer to the manufacturer's material and finish specifications. It is also considered that the callout could potentially refer to a vacuum fitting. However, it is mentioned that 3/4" bolts typically start at 5 TPI, making it unlikely that this bolt is actually a 3/4" size.
  • #1
bbrees
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Anyone determine what the definition/properties of this bolt is?
3/4 x 4 CS-N-LW
 
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  • #2
a 3/4-4? That's one coarse thread. It's definitely not a UN series thread. Can you tell us what context you are seeing this callout? What is it used in, etc...
 
  • #3
FredGarvin said:
a 3/4-4? That's one coarse thread.
Thats what I thought, is there an alternate way of specifying threads in the US? Does 4 on it's own imply MIL?

Or it could be rebar,thats about 3/4-4!
 
  • #4


Could it be an ACME thread? Lead or ball screws with 4 turns per inch are pretty common. The CS-N-LW could just be the manufacturer's material & finish specifications.
 
  • #5


Do you actually have one of these or just the description? If just the description, is there any possibility that this refers to a vacuum fitting?
 
  • #6


jasc15 said:
Could it be an ACME thread? Lead or ball screws with 4 turns per inch are pretty common. The CS-N-LW could just be the manufacturer's material & finish specifications.
I too thought about that, but, from what I saw, 3/4" starts at 5 TPI.
 

1. What is the definition of this bolt?

The definition of a bolt is a type of fastener that is typically used to hold two or more objects together. It typically has a threaded shaft and a head at one end.

2. What are the properties of this bolt?

The properties of a bolt can vary depending on its material, size, and intended use. However, some common properties include strength, corrosion resistance, and durability.

3. How is the strength of a bolt determined?

The strength of a bolt is typically determined by its size, material, and thread type. The larger the bolt and the higher quality the material, the stronger the bolt will be.

4. What factors should be considered when choosing a bolt?

When choosing a bolt, factors such as the material of the objects being fastened, the load it will need to support, and the environmental conditions it will be exposed to should be considered. It is important to choose a bolt with the appropriate strength and corrosion resistance for the specific application.

5. Can bolts be reused?

In most cases, bolts can be reused as long as they are still in good condition and have not been over-tightened or damaged. However, it is important to carefully inspect the bolt before reusing it to ensure it is still suitable for the intended use.

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