ALWAYS use 1 amp less than required when using these! They absolutely take longer to blow than a comparable fuse. If using in a fast blow application I would use even 2 amp less. better to have to hit the switch than repair the board.
Also solder alligator clips with lead wires instead of blown fuses then it is good for all fuse types and sizes. Been using mine for many years on all generations of boardsets ... LOVE them.