標準號：BS EN 2856-2006
中文標準名稱：航空和航天系列.自鎖固定式銳角縮徑有沉孔的地腳螺母.分類:1100 MPa/235℃
英文標準名稱：Aerospace series - Nuts, anchor, self-locking, fixed, closed corner, reduced series, with counterbore - Classification: 1100 MPa/235 °C
標準類型：V20
發布日期：2006/6/30 12:00:00
實施日期：2006/6/30 12:00:00
中國標準分類號：V20
國際標準分類號：49.030.30
引用標準：ISO 3222;ISO 5855-2;ISO 5858;ISO 8788;EN 2133
適用范圍：This standard specifies requirements for closed corner, counterbored, fixed, reduced series anchor nuts, witha self-locking feature achieved by forming the upper portion out-of-round.These nuts are intended for use in aircraft assemblies, in which the fasteners are mainly objected to shearloads. The counterbore is deep enough to accommodate a bolt shank in excess of assembly thickness, aswell as the incomplete threads.They are intended to be used with threaded parts of 1 100 MPa 1) tensile strength classification.The cadmium plating restricts the application to temperature not exceeding 235 °C.