Bolt holes
Bolt holes
(OP)
Hi,
Has anyone ever come up with the situation where you have steel coming from over seas with metric bolt holes and the design was for imperial bolts? My question, the holes for 3/4" A 325 bolts in a bearing connection are 22mm (7/8") where by code they should be 21.4mm(13/16"). An oversize hole is 24mm (15/16")Is this an acceptable for a bearing connection?
Has anyone ever come up with the situation where you have steel coming from over seas with metric bolt holes and the design was for imperial bolts? My question, the holes for 3/4" A 325 bolts in a bearing connection are 22mm (7/8") where by code they should be 21.4mm(13/16"). An oversize hole is 24mm (15/16")Is this an acceptable for a bearing connection?





RE: Bolt holes
I dont have bearing connection codes, is 22mm outside max tolerance for 21.4mm design?
RE: Bolt holes
in a pattern of holes? Can you use
a 7/8 bolt instead of 3/4? Are you using
heavy washers under the bolts? I would expect
them to use a 21mm dia drill for a 3/4 bolt
in Europe.
RE: Bolt holes
RE: Bolt holes
small bolts/pins with an oversized hole. If you want more information please advise and I will have one of my staff engineers get you in the right direction.
RE: Bolt holes
Similarly, contractors sometimes claim that all holes are 'standard' size provided they stop just short of the specified size for an 'over-size' hole, as when holes doen't line up and they ream them.
In practice, anything over the maximum size of an AISC normal hole is to be treated as oversize.
RE: Bolt holes