As long as they fit, you're OK. The design of the filament doesn't matter, just the amp rating. I do see the difference in the diameter...but to my eye it looks like they ought to fit.
If the new fuses don't want to insert, you might check with any older mechanics you know and see if you can raid their supply of old glass fuses. I have a couple of small parts drawers of those fuses myself.
If the new fuses don't want to insert, you might check with any older mechanics you know and see if you can raid their supply of old glass fuses. I have a couple of small parts drawers of those fuses myself.
