Previous in Forum: How to Remove PTFE Coating from Inside the Pipe?   Next in Forum: No-Metallic Materials
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
lwy
Participant

Join Date: Jul 2013
Posts: 4

What Does M8x80 Mean for a Screw?

08/01/2013 4:13 AM

What does M stand for?And what do the two numbers on either side of the cross mean?Thank you.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
2
jesw55
Power-User

Join Date: Aug 2010
Location: Wales, UK
Posts: 391
Good Answers: 18
#1

Re: What does M8x80 mean for a screw?

08/01/2013 4:37 AM

Hi Iwy,

This must rank amongst the most naive questions we've had in quite a while.

The 8 means 8mm Diameter (usually 1.25mm Pitch Metric Coarse) and the 80mm is the length (measured from under the head).

John

__________________
 Best advice I can give as you get older "Never miss an opportunity to relieve yourself"
Register to Reply Good Answer (Score 2)
No more Good Answers.
old salt
Guru
Safety - Hazmat - New Member Engineering Fields - Retired Engineers / Mentors - New Member Engineering Fields - Piping Design Engineering - New Member Hobbies - DIY Welding - New Member Fans of Old Computers - PDP 11 - New Member

Join Date: Feb 2007
Location: Stronger Than The Storm
Posts: 2394
Good Answers: 203
#4
In reply to #1

Re: What does M8x80 mean for a screw?

08/13/2013 5:51 PM

Are you sure of that? What about a flat head machine screw?

This is with the assumption that you are working with a flat head and not a V-8.

Good Luck, Old Salt

__________________
 Any day on the green side of the grass is a GREAT DAY!, --- me +++++++++. I believe creativity is an inherent part of everyone. --- Kermit T. Frog
Register to Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#2

Re: What does M8x80 mean for a screw?

08/01/2013 4:52 AM

The M stands for metric.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
jesw55
Power-User

Join Date: Aug 2010
Location: Wales, UK
Posts: 391
Good Answers: 18
#3
In reply to #2

Re: What does M8x80 mean for a screw?

08/01/2013 4:59 AM

Thanks Tornado for "crossing the i's and dotting the t's".

John

__________________
 Best advice I can give as you get older "Never miss an opportunity to relieve yourself"
Register to Reply Off Topic (Score 5)
Register to Reply
Have a Different Question?
4 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

jesw55 (2); old salt (1); Tornado (1)

Previous in Forum: How to Remove PTFE Coating from Inside the Pipe?   Next in Forum: No-Metallic Materials

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (125 right now)
Show Members
Advertisement