What is the standard spacing of A325 bolts on metric projects
What is the standard spacing of A325 bolts on metric projects
(OP)
Structural bolts are typically spaced at 3" on center in the U.S. What is the standard metric spacing for bolts in other countries? (We are doing a project in South America that will be fabricated in China.) 3" = 76mm. A 76mm bolt spacing sounds odd. We will eventually get this dimension from the fabricator, but I wanted to find out beforehand. 80mm?






RE: What is the standard spacing of A325 bolts on metric projects
Just don't use any decimals in your drawings and you should be fine. Try to end all layouts and dimensions with "5" or "0" and people won't complain.
RE: What is the standard spacing of A325 bolts on metric projects
RE: What is the standard spacing of A325 bolts on metric projects
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: What is the standard spacing of A325 bolts on metric projects
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: What is the standard spacing of A325 bolts on metric projects
This isn't something I'd stress overly hard about. As long as you're consistent on a project, don't use dumb numbers (end with a 0 or 5) and can actually physically get to all the bolts for fitup, I don't think it's a big deal with modern machining.
RE: What is the standard spacing of A325 bolts on metric projects
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.