... 500,Torgue Strength(FT LBS):6, Voltage withstand(KV):6,screw(mm):6, weight(G ... 550,Torgue Strength(FT LBS):8, Voltage withstand(KV):8,screw(mm):8, weight(G ... 650,Torgue Strength(FT LBS):10, Voltage withstand(KV):12,screw(mm):8,weight(G): ... 1000, Tongue Strength(FT LBS):20, Voltage withstand(KV):15Screw (mm):8, weight(G):835. ... Torque Strength(FT LBS):40 Voltage withstand(KV):25,screw(mm):10, Weight (G ...