Abstract: A conveyor belt is made from rows of plastic conveyor belt modules having interfitting end members in adjacent rows connected by a lateral pivot rods extending through aligned holes in the end members. To retain the pivot rods in place an outermost end member of each module is provided with an aperture intersecting its pivot rod hole at a location adjacent one end of the pivot rod. A rotary cylindrical stop member is fitted in the aperture to block the end of the pivot rod. The stop member has a lateral through-bore which can be aligned with the pivot rod hole when the stop member is rotated in the aperture to a release position so that the pivot rod can be removed through the stop member.