GB/T 5267.2-2021 Active National standards

GB/T 5267.2-2021 Fasteners—Non-electrolytically applied zinc flake coatings

GB/T 5267.2-2021 Fasteners—Non-electrolytically applied zinc flake coatings

Publish Date: 2021-12-31 Implement Date: 2022-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 5267.2-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Fasteners

ICS Name: Fasteners Comprehensive

Publish Date: 2021-12-31

Implement Date: 2022-07-01

Pages: 34 pages

Scope

This document specifies the technical requirements for non-electrolytic zinc flake coatings on steel fasteners. This document applies to the following coatings: -- with or without hexavalent chromium; -- with or without surface coatings; -- with or without lubrication (self-lubricating and/or additional lubrication). This document applies to ISO metric threaded bolts, screws, studs and nuts, non-ISO metric threaded fasteners, and non-threaded fasteners such as washers, pins, clamps, etc. This document does not specify the weldability or coating performance of fasteners, and it does not apply to mechanical galvanizing. Note: High-strength fasteners (with a tensile strength of ≥1,000 MPa) use coatings that comply with this document to avoid the risk of internal hydrogen embrittlement (see 4.4). For design and installation information on coated fasteners, please refer to Appendix A.

Development Information

Word Count: 69 Thousand words Pages: 34 pages

Replace the following standards

GB/T 5267.2-2017 Fasteners—Non-electrolytically applied zinc flake coatings

Referenced Standards

ISO 3613:2010 GB/T 1237-2000 Designation system for fasteners GB/T 3099.3-2017 Terminology of fasteners—Coatings GB/T 3934-2003 Specification of gauges for general purpose screw threads GB/T 6462-1986 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 6462-2005 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 9789-1988 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture GB/T 9789-2008 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 16823.3-1997 Method of tightening test for threaded fasteners GB/T 16823.3-2010 Fasteners—Torque/clamp force testing GB/T 6462-2025 Metallic and oxide coatings—Measurement of coating thinckness—Microscopical method GB/T 3934-2025 Specification of gauges for general purpose screw threads

Adopt standards

ISO 10683:2018

Related Standards

GB/T 16823.3-1997 Replaced

GB/T 16823.3-1997 Method of tightening test for threaded fasteners

Publish Date: 1997-05-29

GB/T 16938-1997 Replaced

GB/T 16938-1997 Fasteners—General requirements for blots,screws,studs and nuts

Publish Date: 1997-08-05

GB/T 1237-2000 Active

GB/T 1237-2000 Designation system for fasteners

Publish Date: 2000-09-26

GB/T 3098.17-2000 Active

GB/T 3098.17-2000 Mechanical properties of fasteners—Preloading test for the detection of hydrogen embrittlement—Parallel bearing surface method

Publish Date: 2000-09-26

GB/T 2-2001 Replaced

GB/T 2-2001 Fasteners—Ends of parts with external thread

Publish Date: 2001-09-15

GB/T 5267.1-2002 Replaced

GB/T 5267.1-2002 Fasteners—Electroplated coatings

Publish Date: 2002-12-05