A sleeve lock assembly for mounting to a sleeve may include a female ring member, a male ring member, and an annular locking member. The female ring member may include a threaded interior portion and an annular lip having an annular ramp surface. The male ring member may have an axial flange and a radial flange. The axial flange may have an annular end face and a threaded exterior portion for engaging the threaded interior portion of the female ring member. The locking member may include at least one annular gripping flange having a gripping edge. The locking member may be captured between the annular lip and the end face. Axial movement of the annular lip toward the end face may cause the gripping flange to slide against the ramp surface such that the gripping edge is urged into engagement with the outer sleeve surface.