Bolt Edge Distances

Minimum pitch (distance between centres of bolt holes) shall not be less than 2.2 times the nominal bolt diameter.

Minimum edge distance (distance between centre of the bolt hole to the plate edge) shall not be less than 1.2 times the nominal bolt diameter.

Positioning of holes for bolts and rivets in accordance with EN1993-1-8 Table 3.3

Distances and Spaces	Minimum
End distance e1	1.2d0
End distance e2	1.2d0
Distance e3 in slotted holes	1.5d0
Distance e4 in slotted holes	1.5d0
Spacing p1	2.2d0
Spacing p2	2.4d0

Symbols for spacing of fasteners

End and edge distances for slotted holes