GB/T 5785-2016 (English Version) Hexagon head bolts.Fine pitch thread

Standard No.: GB/T 5785-2016
Language: Chinese, Available in English version
Release Date: 2016
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 5785-2016
Replace: GB/T 5785-2000

Scope: This standard specifies the type, size, technical conditions and marks of hexagon head bolts with fine threads. This standard is applicable to thread nominal diameter d = 8 mm ~ 64 mm, fine thread, performance class 5.6, 8.8, 10.9, A2-70, A4-70, A2-50, A4-50, CU2, CU3 and AL4 , Hex head bolts with product grades of A and B. Class A is used for d=8 mm~24 mm and l≤10d or l≤150 mm (according to the smaller value); Class B is used for d>24 mm or l>10d or l>150 mm (according to the smaller value) bolts. Coarse thread bolts specified in GB/T 5782 should be preferred.

GB/T 5785-2016 Referenced Document

GB/T 1237 Designation system for fasteners
GB/T 16938 Fasteners.Gerneral requirements for bolts,screws,studs and nuts
GB/T 193 General purpose metric screw threads--General plan
GB/T 2 Fasteners.Ends of parts with external thread
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
GB/T 3098.10 Mechanical properties of fasteners Bolts, scrows, studs and nuts made of non-ferrous metals
GB/T 3098.6 Mechanical properties of fasteners—Stainless steel bolts，screws and studs*， 2023-05-23 Update
GB/T 3103.1 Tolerances for fasteners--Bolts,screws,studs and nuts
GB/T 5267.1 Fastener Plating*， 2023-05-23 Update
GB/T 5267.2 Fasteners—Non-electrolytically applied zinc flake coatings*， 2021-12-31 Update
GB/T 5267.4 Passivation of corrosion-resistant stainless-steel fasteners
GB/T 5276 Fasteners.Bolts, screws, studs and nuts.Symbols and descriptions of dimensions
GB/T 5779.1 Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements
GB/T 5782 Hexagon head bolts
GB/T 5786 Hexagon head bolts with fine pitch thread.Full thread
GB/T 90.1 Fasteners—Acceptance inspection*， 2023-05-23 Update
GB/T 90.2 Fasteners--Marking and packaging
GB/T 9145 General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan