DIN 264-2 : 1973 Title: Round Screw Thread with Clearance and Flat Flank with Pitch 7 mm; Limiting Dimensions of Screw Threads and Allowances Permissible Deviations and Permissible Wear of Screw Thread Gauges Year: 1973 Publisher: DIN Media GmbH Availability: Within 1-2 working days