Warn of invalid bolt grip length

[AleckGiles]

When you place a bolt the grip is measured and the bolt length selected based on length rules in the database.

However, if you place a bolt where the grip length is outside the range defined in any length rules the system does not warn you of this. For example, if you place an XOX bolt on a pair of 3mm plates the grip is 6mm. If you select an 8.8 grade Standard assembly M20 bolt it looks fine and a 40 long bolt is selected. However, the grip is only 6mm and the minimum grip defined for the shortest bolt (40 long) is 12mm. See the image below.

It is not actually possible to create this in real life. The M20 bolt has something like a 20mm plain shank on it so any grip less than around 19 will need lots of washers to work and that is not acceptable either.

Whenever a grip length is calculated that is not covered by the length rules in the system the system should warn you that the grip length is invalid by showing the oversize bolt head that is shown when the selected bolt length does not exist.

It would also be even better if these bolts were listed in the Model Check and / or Advance Steel technical Check functions too.

Thanks,

Aleck.