wanting to make fuse holders a plastics question

[welder]

hi ,
i am moving the battery to the trunk of my car and installing amps in the trunk. i am using 2/0 positive battery cable that i have .
and the fuse holders i have found are only for 1/0 cable. and they look cheaply made and very costly.
and these will be out of sight so no one will see them.

i am thinking about using single 2/0 square lug terminals with a set screw ( like what is in commercial electrical boxes ).

1 lug on each end of the wires , mounted to a post ( bolt ) and an anl fuse mounted to the posts (bridging the gap from wire to wire)



what type of plastic would i need to mount the posts ( bolts ) into to hold the fuse and lugs. i cant find any info so far on this . or where would i look for this.

thanks for any help

[SY]

Glass-filled phenolic or PBT should work fine.

[welder]

thanks
tim