TCCoA Forums banner

1 - 7 of 7 Posts

·
Registered
Joined
·
7,758 Posts
Discussion Starter #1
What does this represent:

6-M4 L=6mm

It is on a drawing for a power supply and it is pointing to a threaded hole. I'm trying to find the size/pitch and maximum lengthfor the matching screw, but I'm not familiar with that format.

http://www.meanwell.cn/about/en/S-400.pdf

I'm thinking it is a 4 mm x .7mm pitch x 6mm long, but that is just a WAG.
 

·
Refrigerator Raider Hater
Joined
·
11,719 Posts
It looks to me like the 6 is the quantity and pitch is not defined. Although there are only 4 shown, the other two bolt labels show 4- for 4 screws and 5- for 5 screws
 

·
Super Moderator
Joined
·
10,414 Posts
That looks like M4 screws, 6mm long; in 6 places.
 

·
Registered
Joined
·
7,758 Posts
Discussion Starter #5
Thanks guys!! I hadn't even thought about a quantity! :bowdown:

And yeah, on the other side there are only two matching holes.
 

·
Registered
Joined
·
613 Posts
I agree with the others
Part of the metric standards process was that small hardware had a default pitch. Of course there were almost immediate exceptions required.
I've noticed though that in electronics the default fastener pitch is the finest thread. eg if it was american standard and a # 6 is called for, then 6-32 is assumed
 

·
Super Moderator
Joined
·
10,414 Posts
1 - 7 of 7 Posts
Top