Change a non-standard fastener size you created in Fusion.
On the Design workspace toolbar, click Solid > Insert > Insert Fastener .
The Insert Fastener dialog displays.
In the dialog, browse to a fastener family and select the fastener you need.
Set the Nominal Size and/or the Nominal Length to the non-standard size you want to modify.
At the bottom of the Edit Fastener dialog, click the Modify Fastener button .
Change the values of the fastener.
Click Save to Hub Library .
In the Edit Fastener dialog, click OK.
The fastener updates to use the modified non-standard size.