.086-56 UNC or 2-56 UNC
.086-56 UNC or 2-56 UNC
(OP)
I had a previous customer that required tapped holes be called out with the decimal major diameter(.086)instead of the screw number (2). I haven't found an ASME specification that supports this. Does anyone know if there is such a specification?





RE: .086-56 UNC or 2-56 UNC
RE: .086-56 UNC or 2-56 UNC
RE: .086-56 UNC or 2-56 UNC
"Numbered sizes may be shown because of established practices. The decimal equivalent, to three decimal places, should be shown in parentheses."
So you can show decimal without numbers, but if showing numbers you should show decimals too.
KENAT,
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RE: .086-56 UNC or 2-56 UNC
I attempted to look at ASME Y14.6 but our .pdf file is only accessible to the person/computer that downloaded it. As soon as I track down that "person" I'll look it up.
RE: .086-56 UNC or 2-56 UNC
RE: .086-56 UNC or 2-56 UNC
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: .086-56 UNC or 2-56 UNC
Do so at your own risk and don't blame me in the unlikely event someone uses it as an excuse to make you buy a non functioning piece of ****.
There was a thread on here not so long ago where someone was confused thinking the # was the diameter in inches or something like that. To me that makes the case for following the standard and making it clear.
KENAT,
Have you reminded yourself of FAQ731-376: Eng-Tips.com Forum Policies recently, or taken a look at posting policies: http://eng-tips.com/market.cfm?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: .086-56 UNC or 2-56 UNC
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: .086-56 UNC or 2-56 UNC
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: .086-56 UNC or 2-56 UNC
Either way you choose that works for your company, be consistant and stay with one type.
Chris
SolidWorks 09, CATIA V5
ctopher's home
SolidWorks Legion
RE: .086-56 UNC or 2-56 UNC
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: .086-56 UNC or 2-56 UNC
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: .086-56 UNC or 2-56 UNC
I personally shy away from using decimal notation for threads, even as reference. However, as long as ASME Y14.100 is referenced on the drawing or even the thread standard itself, use of decimal or tradition numbers are both "allowed" and should be understandable to someone that can read "blueprints".
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: .086-56 UNC or 2-56 UNC
KENAT,
Have you reminded yourself of FAQ731-376: Eng-Tips.com Forum Policies recently, or taken a look at posting policies: http://eng-tips.com/market.cfm?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?