[7 Insert the CBC M6 X 50mm (K) to 1st, 6th,8th, 13th Bed Slat (H) connection ~ Side Rail Cleat(C) and Insert CSK M4 X 32mm (V) to 2nd, 3rd 4th, 5th, 7th, 9th, 10th, 11th, 12th Bed slat (H) connection Side Rail Cleat *Use hardware pack "STEP 7".* “For Allen Key M4 (R) please took from hardware pack "STEP 3 & 4".* 181, 6th, eth, 13th Stat 8 Insert CBC M6 X 50mm (K) to Bed slat (H) connection Center Support (D) by Allen Key M4 (R). *Use hardware pack "STEP 8".