Thermal Fuse on Nissan x trail?

i know this has been covered before on this site but......QUESTION.. i've located the fuse, and have tested it has gone


BUT a few people reccomend this fuse from Maplin, but i noted that teh one from maplin is a metal one, not ceramic, as per the original....is the metal fuse not going to cause problems as it will earth itself against the casing, changing the way the circuit board works?