DIN ISO 965-4:2025-06

This document specifies the fundamental deviations and limits of sizes for the pitch and major diameters of the hot-dip galvanized metric external threads (M) conforming to ISO 262 (M6 to M68 with the coarse pitches and M72 to M100 with pitch 6) having basic and design profiles in accordance with ISO 68-1. This document is applicable to the hot-dip galvanized metric external threads undersized to tolerance class 6az before galvanizing to mate with the internal threads made to tolerance position H or G after galvanizing. This document contains the German translation of the International Standard ISO 965-4:2025, which has been prepared by Technical Committee ISO/TC 1 "Screw threads", the secretariat of which is held by SAC (China). The responsible German standardization committee is Working Committee NA 152-02-01 AA "Gewinde" ("Screw threads") at DIN Standards Committee Technical Fundamentals (NATG), with the participation of Working Committee NA 067-00-01 AA "Referenznormen und Qualitätsmanagement" ("Reference standards and quality management") at DIN Standards Committee Fasteners (FMV).