BS EN 3305:1997
镀镉的合金钢短螺纹紧公差标准螺杆斜十字槽100°小埋头螺钉.等级:1100 MPa(室温)/235℃
Screws, 100 ° countersunk reduced head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature)/235 °C