This standard specifies the materials, processes, dimensions, and specifications for hot-dip galvanizing applied to steel fastening screw parts with a thread designation of M8 to M64, bolts and studs with a strength class of 10.9 or less, and nuts with a strength class of less than 12. Specify performance requirements.
JIS B 1048:2007 Referenced Document
JIS B 0209-1 ISO general purpose metric screw threads -- Tolerances -- Part 1: Principles and basic data
JIS B 0209-2 ISO general purpose metric screw threads -- Tolerances -- Part 2: Limits of sizes for general purpose external and internal screw threads -- Medium quality
JIS B 0209-3 ISO general purpose metric screw threads -- Tolerances -- Part 3: Deviations for constructional screw threads
JIS B 0209-4 ISO general purpose metric screw threads -- Tolerances -- Part 4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing
JIS B 0209-5 ISO general purpose metric screw threads -- Tolerances -- Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing
JIS B 1051 Mechanical properties of fasteners made of carbon steel and alloy steel.Bolts, screws and studs with specified property classes.Coarse thread and fine pitch thread*， 2014-09-22 Update