標(biāo)準(zhǔn)號(hào)：DIN EN 2754-2008
中文標(biāo)準(zhǔn)名稱(chēng)：航空航天系列.沉頭不固定雙耳自鎖浮動(dòng)防松螺母.等級(jí):1100MPa/235℃
英文標(biāo)準(zhǔn)名稱(chēng)：Aerospace series - Nuts, anchor, self locking, two lug, floating with counterbore - Classification: 1100 MPa/235 °C; German and English version EN 2754:2006
標(biāo)準(zhǔn)類(lèi)型：V20
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國(guó)標(biāo)準(zhǔn)分類(lèi)號(hào)：V20
國(guó)際標(biāo)準(zhǔn)分類(lèi)號(hào)：49.030.30
引用標(biāo)準(zhǔn)：ISO 5855-1;ISO 3209;ISO 5855-2;ISO 5858;ISO 8788;DIN EN 2133;DIN EN 2424;DIN EN 2491;DIN EN 2542;DIN EN 2543;DIN EN 9100
適用范圍：This standard specifies the characteristics of two lug, counterbored, floating anchor nuts. with a self-lockingfeature achieved by forming the upper portion out-of-round, the dimensions of which are in conformity with ISO 3209.These nuts are ,intended for use in aircraft assemblies, in which the fasteners are mainly sublected to shearloads. The counterbore of nuts with thread diameter equal to or greater than 4 mm is deep enough toaccommodate a bolt shank in excess of assembly thickness, as well as the incomplete threadsThe 3 mm diameter nut has no counterbore.They are intended to be used with threaded parts of 1 100 MPa 1) tensile strength classification.The cadmium plating restricts the application to temperatures not exceeding 235 ℃.