Specification for Screwing Dies and Dienuts. Part 1. Specification for Hand- and Machine-operated Circular Screwing Dies and Hand-operated Die StocksBritish Standards Institute Staff1999
Specification for Screwing Dies and Dienuts. Part 4. Terminology for Circular Screwing DiesBritish Standards Institute Staff2007
Specification for Screwing Dies and Dienuts. Part 5. Specification for Dimensions of Hexagonal DienutsBritish Standards Institute Staff1999