What's the standard that specifies the size of center marks and when they should be added to holes?

[fcsuper]

[xpost from ASME standards forum because I know this one has a lot of smart people that frequent it] What's the standard that specifies the size of center marks and when they should be added to holes on a drawing? Almost every ASME Y drawing with holes has center marks that have a uniform shape, but where is this actually specified, and that we should put them at the center of holes (as opposed to putting nothing, or show two crossing centerlines)?


Matt Lorono, CSWP
Product Definition Specialist, DS SolidWorks Corp
Personal sites:
Lorono's SolidWorks Resources & SolidWorks Legion

 

[ctopher]

I thought I saw somewhere indicating the size, but don't remember where. I don't have a copy, maybe try ASME Y14.24?

Chris, CSWP
SolidWorks '20
ctophers home
SolidWorks Legion

 

[fcsuper]

ASME Y14.2 (not Y14.24) mentions that center lines are used as center points in paragraph 4.7. In ASME Y14.5, these same objects are called small cross when showing dimensioning a large radius. But I've found nothing in the ASME standard that goes into more detail than that.

Matt Lorono, CSWP
Product Definition Specialist, DS SolidWorks Corp
Personal sites:
Lorono's SolidWorks Resources & SolidWorks Legion

 

[3DDave]

How did this snipe hunt start?

 

[fcsuper]

@3DDave, pedantics.

Matt Lorono, CSWP
Product Definition Specialist, DS SolidWorks Corp
Personal sites:
Lorono's SolidWorks Resources & SolidWorks Legion

 

[3DDave]

Wait for a distraction and then flee the building.

 

[TheTick]

Found it here (5th bullet point).