1. Specification for ISO metric black cup and countersunk head bolts and screws with hexagon nuts. (30th March 1973) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for normal and high strength steel bolts and nuts for railway rail fishplates. (15th November 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗