1. Countersunk flat head screws (common head style) with type H or type Z cross recess. Product grade A. Steel of property class 8.8, stainless steel and non-ferrous metals Part 2, (15th January 1995) 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) ↗