標準號：SIS SS-ISO 9156-1991
中文標準名稱：航空航天．螺母，固定器，自動上鎖，固定的90°角，簡化系列，帶沉孔，MJ 螺紋，涂層或非涂層，分類1100 兆帕/235 °C，1100 兆帕/315 °C 或1100 兆帕/425 °C 尺寸
英文標準名稱：Aerospace — Nuts, anchor, self-locking, fixed, 90° corner, reduced series, with counterbore, with M J threads, coated or un- coated, classification 1100 MPa/235 °C, 1100 MPa/315 °C or 1100 MPa/425 °C - Dimensions
發布日期：1991/9/11 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This International Standard lays down the dimensions for reduced series, fixed, 90° corner, counterbored anchor nuts, with MJ threads, coated or uncoated, with a self-locking feature achieved by forming the upper portion out-of-round and with a classification of- 1 100 MPa/2535 °C; or- 1 100 MPa/315 °C; or- 1 100 MPa/425 °C.