罩头 meaning in Chinese

capouch

Specification for iso metric black cup and countersunk head bolts and screws with hexagon nuts
Iso米制粗制帽罩头和沉头螺拴螺钉和六角螺母规范
235 screws , cap head , hexagon socket , coarse tolerance normal shank , medium length thread , in alloy steel , cadmium plated - classification : 1100 mpa at ambient temperature 235 c
镀镉合金钢制中长螺纹粗公差标准柄六角凹帽罩头螺钉.等级: 1100 mpa