A surface fastener (100) comprising: a base material (50) having a plurality of openings (OP10) provided therein and a plurality of engagement elements (60) provided integrally with the base material (50) and corresponding to the plurality of openings (OP10). The engagement elements (60) have an engagement head section (60) having a base end (61) connected to frame sections (55) surrounding the openings (OP10) in the base material (50). The engagement head sections (60) extend from the base end (61) towards the inside in the opening width direction of the openings (OP10), and protrude from the frame sections (55).黏扣帶(100)具備:設有複數個開口(OP10)的基材(50)、及與複數個開口(OP10)對應且一體設置於基材(50)的複數個卡合元件(60);卡合元件(60)具有卡合頭部(60),該卡合頭部(60)之基端(61)連結於圍繞基材(50)的開口(OP10)之框部(55);卡合頭部(60)係從基端(61)朝開口(OP10)的開口寬度方向內側延伸且從框部(55)突出而構成。50‧‧‧基材51、71‧‧‧上表面52、72‧‧‧下表面53、73、83‧‧‧側面55‧‧‧框部100‧‧‧黏扣帶60‧‧‧卡合元件、卡合頭部60p、60q‧‧‧卡合頭部70、70a、70b、70c、70d‧‧‧縱棒部80、80a、80b、80c、80d、80e、80f‧‧‧橫棒部81‧‧‧上表面82‧‧‧下表面AX70‧‧‧與X軸平行之軸AX80‧‧‧與Y軸平行之軸D1‧‧‧縱開口寬度方向L10‧‧‧開口列OP10、OP10a‧‧‧開口W60‧‧‧寬度W100‧‧‧橫寬度
