Based on what I have read here there is 2 options:
1. [The standard option]: Repeat your before determined 100% 5RM for the last two weeks. That would mean you do the bench with the 110 in each workout for the weeks 7-8
OR
2. You can try to raise the weight each workout a bit, say 5 % or 2,5 kg or even in as small increments as there are plates, as long as you can lift all reps and find your true 5RM. Then just repeat that weight till the end of week 8. For example that would mean you'd start Bench on week 7 with 112,5 if you managed the 110 and then raise each workout 2,5 kg till you find your 5RM (I would stop there where you can lift it the first set 5 times but the 2nd or 3rd not anymore for full 5) and go with that to the end.
(OR 3. as in option 2. but repeat the last weight or "True 5RM" for whole 2 weeks and therefore also lengthen the cycle a bit as described
here.)
I myself am thinking of going with the option 2 and increasing with as small steps as there are plates once I reach weeks 7 and 8.