Unitary, strike, drop-in anchor for concrete and the like

摘要: There is provided a unitary, strike drop-in anchor where the individual parts are permanently held together to avoid misplacing any such part. The comprises an body with central bore, first end of bore being threaded and having constant internal cross-section for length portion. exterior body, have decreasing towards second beyond A bolt preferably polygonal drive head, external threads extending from head end, has tool through bore.