Rail length, minimum bracket to end?

[ChrisJEvans]

What is the minimum spare rail between the end bracket and end of the rail should I have. My panels are 1050mm and for the single panels with two end brackets it is about 1087 my rails are 3300 and cut to 1099 leaving just 6mm either spare. Not only don't I like spending extra wasting 1m of rail goes against the grain. Where there double or three panels on the rail things are not as tight.
I have a torque wrench to ensure they are secure and I realise it will be more awkward to fit but I've got scaffold to gutter height so good access.

[Oldgreybeard]

I think the rule of thumb is that the outer edge of the fastener diameter should be at least one fastener diameter away from the end. My gut feeling is that this looks alright.

[Fintray]

I can't see from the picture how the bottom edge of the bracket sits against the rail but I would look to make sure it cannot slip off the end of the rail.

[AlBargey]

I think I remember reading the spec for Renusol rail, where the clamps should be a minimum 35mm away from the end of the rail. I guess this is for pull out forces under wind loading. But also you wouldn't be able to fit end caps in them without the 35mm. Your rails will also have a spec sheet / mounting instructions if you know what they are?