Molded surface fastener

A molded surface fastener includes:

• a fastener member made of a synthetic resin;
• and a back member formed separately from the fastener member, in which the fastener member has a plate-shaped base portion provided with a first surface and a second surface, and a plurality of engagement elements provided to the first surface of the base portion, and the back member is secured to the second surface of the base portion,
• wherein the back member has a structure enabling the synthetic resin to pass from a first surface to a second surface of the back member or a structure enabling the synthetic resin to penetrate into the back member,
• the base portion has a first base region of a predetermined thickness and a second base region formed to be thicker than the first base region,
• the back member is secured to at least the second base region of the base portion,
• the fastener member has left and right outer wall portions disposed upright along a longitudinal direction of the base portion,
• the left and right outer wall portions are arranged on an outside, in a width direction, of the region where the plurality of engagement elements are formed,
• the second base region is formed in only a region on an outside of the left and right outer wall portions with respect to the width direction of the base portion, and
• the back member is held in a non-secured state in a region inside of the left and right outer wall portions.