We are offering 3.9mm bone locking bolt. Specifications cat no. : s.s.: 259.240 to 259.960ti : 404.324 to 404.360thread dia : 4.9mmcore dia : 4.0mmhex. Socket : 3.5mmhead dia : 8.0mmdrill bit for threaded hole : 4.0mmscrew driver : 4.5mmscrew length...