Those aren't the same. The nylon part in my photo attaches direct to the car's wiring loom. There's no removable fuse.The nylon part is half of a fuse-holder.
The wire is the fuse. My dads transit had one that 'blew'. We just replace it with a normal fuse of the same rating
No main fuse on my little car, but is has something called a fusible link, a lenth of wire which apparently acts as a fuse. Anyone know what bit actually burns, is it the wire, or is there a fuse inside the connector?