read above......you answered your own questiong TWICE, in the form of you asking the exact question.
but if your still lost......
2 bolts
4 nutes
4 LOCK washers
ring terminals (for each wire going to said bolt)
**common sense**
or if you really want to get technical...
1 bolt per pos/neg of each sub. so..... for a DVC sub....
2 bolts for +'s
2 bolts for -'s
2 washers per bolt = 8 washers
2 lock washers per bolt = 8 lock washers.
this lets you change your ohm load //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif