Does the number of bolts on a bolt connector influence something?


Yes, the more bolts you have on your bolt connector, the safer and more reliable will be a connection. Quantity of bolts should correspond to the cross-section of the cable, the bigger a cable is, the bolts are necessary. For example, for a lug that is designed for the range 150\240 mm² one bolt is not enough for ensuring mechanical strength and electrical reliability of the connection.