1999DIN 13-9:1999-11 ISO general purpose metric screw threads - Part 9: Nominal sizes for 4 mm fine pitch threads; nominal diameter from 40 mm to 300 mm
1999DIN 13-9:1999 ISO general purpose metric screw threads - Part 9: Nominal sizes for 4 mm fine pitch threads; nominal diameter from 40 mm to 300 mm