1. Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads). Diameters ¼ in and over Part 1, (16th August 1961) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads). Diameters below ¼ in Part 2, (31st January 1966) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗