Non Weld Bow Spring Centralizers centralize the casing in bore hole, prevent differential sticking and provide smoother running capability by reducing frictional forces. They provide annular space for efficient operation of the mechanical cementing aids, increase displacement efficiency, allow casing to be reciprocated or rotated, limit filter cake removal during run in and provide reinforcement to cement column. They combine the advantage of high restoring force, low moving and starting force. Non Weld Bow Spring Centralizers are preferred for most applications. These centralizers are API 10D monogrammed.