Voltage 12, No./mount. holes 2, No./terminals 4, Terminal 50/mm 10-32 UNF, Coil Bolt Length 28.50, Plunger Outer Diameter 27.00, B+ 1/2" UNC, Terminal 50 Bolt, B+ Height 40.00, Coil Bolt Diameter 1/2" UNC, Outer Diameter 63.60, Remarks Ground Terminal: Cable., Amount of Mounting Holes 2, Total Length 183.00