countersunk bolts - Standard

[braham0793]

Dear;

Good Morning,

Someone who can tell me the American standard for countersunk bolts?

Best regards.

 

[ctopher]

Search here for more specific bolts: Link

Chris, CSWP
SolidWorks '16
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SolidWorks Legion

 

[Jboggs]

Depends on the drive configuration. Some have 80° countersinks and some have 100° countersinks.

 

[braham0793]

It is 83 ° to be exact.

 

[BEMPE16524]

It's ASME/ANSI B18.5
Can also look inside Machinery's Handbook.

 

[tbuelna]

Depends on the application. Flush head bolts/screws used in the US aerospace industry are mostly 100deg. Commercial flush head machine bolts/screws are mostly 90deg or 82deg. The common FHCS, like those from Unbrako, are typically 82deg.