Bolt size, bolt grade and bolt hole type are determined for bolted steel connections with the Hole & Bolt Parameters dialog. Any connection with bolts has this dialog in the connection settings.
One of the normal, oversize or custom round hole types is chosen. If a custom round hole type is selected, the wanted value can be given.
One of the short, long or custom slotted hole types is chosen. If a custom slotted hole type is selected, the wanted value can be given.
Bolt size is selected from the list.
Bolt grade is selected from the list.