本采购规范涵盖了带有可选端头的开口销（见图1），按公制尺寸制造，并由统一编号系统UNS S32100下确定类型的耐腐蚀耐热钢制成。主要用于在高达815摄氏度的应用中需要耐腐蚀和耐热开口销来锁定零件的场合。

This procurement specification covers split cotter pins with optional ends (see Figure 1), made to metric dimensions and made form a corrosion and heat resistant steel of the type identified under the Unified Number System as UNS S32100.Primarily for use where a corrosion and heat resistant cotter pin is required for locking parts in applications up to 815 degrees C.