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GB/T 6173-2015 PDF English

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GB/T 6173-2015: Hexagon thin nuts -- Fine pitch thread
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GB/T 6173: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
GB/T 6173-201570 Add to Cart Auto, 9 seconds. Hexagon thin nuts -- Fine pitch thread Valid
GB/T 6173-2000279 Add to Cart 3 days Hexagon thin nuts (chamfered) with fine pitch thread Obsolete
GB/T 6173-1986RFQ ASK 3 days Hexagon thin nuts--Fine pitch thread--Product grades A and B Obsolete

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GB/T 6173-2015: Hexagon thin nuts -- Fine pitch thread

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT6173-2015
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 21.060.20 J 13 Replacing GB/T 6173-2000 Hexagon Thin Nuts – Fine Pitch Thread [ISO 8675.2012, Hexagon Thin Nuts Chamfered (Style 0) with Metric Fine Pitch Thread – Product Grades A and B, MOD] 六角薄螺母 细牙 Issued on: DECEMBER 31, 2015 Implemented on: APRIL 1, 2016 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC.

Table of Contents

Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Dimension ... 6 4 Technical Conditions and Reference Standards ... 7 5 Markings ... 8

Foreword

GB/T 6173 is one of the serial national standards of “Hexagon Nuts (Part)”, which include. --- GB/T 41 Hexagon Nuts, Style 1 – Product Grade C; --- GB/T 6170 Hexagon Nuts, Style 1; --- GB/T 6171 Hexagon Nuts, Style 1 – Fine Pitch Thread; --- GB/T 6172.1 Hexagon Thin Nuts; --- GB/T 6173 Hexagon Thin Nuts – Fine Pitch Thread; --- GB/T 6174 Hexagon Thin Nuts – Unchamfered; --- GB/T 6175 Hexagon Nuts, Style 2; --- GB/T 6176 Hexagon Nuts, Style 2 – Fine Pitch Thread. This Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard replaced GB/T 6173-2000 Hexagon Thin Nuts – Fine Pitch Thread; compared with GB/T 6173-2000, this Standard mainly has the following technical changes. --- Delete “if other technical requirements are needed, ... the selection in (GB/T 3098.15 and GB/T 3103.1).” (Chapter 1 of Edition 2000); --- Unify the reference thread standards to be GB/T 193, GB/T 9145 (Chapter 2); --- Modify the inner chamfer into θ=110°~120° (Figure 1); --- Increase the mechanical properties of steel nuts. QT – Quenching and Tempering (Table 3). This Standard adopts re-drafting method to modify and use ISO 8675.2012 Hexagon Thin Nuts Chamfered (Style 0) with Metric Fine Pitch Thread – Product Grades A and B (English Edition). This Standard has the following technical differences and causes from ISO 8675. 2012. --- Delete ISO 8675 provision. “if other technical requirements are needed, ... selection in ISO 4759-1” (Chapter 1), which don’t belong to the contents specified by this Standard; --- In the normative references, use national standards to replace the international Hexagon Thin Nuts – Fine Pitch Thread

1 Scope

This Standard specifies the type and dimension, technical conditions and markings of hexagon thin nuts – fine pitch thread. This Standard is applicable to the chamfered hexagon thin nuts – fine pitch thread with thread nominal diameter D = 8mm~64mm; Performance Grades 04, 05, A2-025, A2- 035, A4-025, A4-035, CU2, CU3 and AL4; Product Grades A and B. Grade A is applied to the nuts with D≤16mm; while Grade B is applied to the nuts with D >16mm.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB/T 90.1 Fasteners – Acceptance Inspection (GB/T 90.1-2002, ISO 3269.2000, IDT) GB/T 90.2 Fasteners – Marking and Packaging GB/T 193 General Purpose Screw Threads – Diameters and Pitches (GB/T 193- 2003, ISO 261.1998, MOD) GB/T 1237 Designation System for Fasteners (GB/T 1237-2000, eqv ISO 8991.1986) GB/T 3098.2 Mechanical Properties of Fasteners – Nuts (GB/T 3098.2-2015, ISO 898-2.2012, MOD) GB/T 3098.10 Mechanical Properties of Fasteners - Bolts, Screws, Studs and Nuts Made of Non-Ferrous Metals (GB/T 3098.10-1993, eqv ISO 8839.1986) GB/T 3098.15 Mechanical Properties of Fasteners – Nuts Made of Stainless Steel (GB/T 3098.15-2014, ISO 3506-2.2009, MOD) GB/T 3103.1 Tolerances for Fasteners – Bolts, Screws and Nuts (GB/T 3103.1- 2002, idt ISO 4759-1.2000) ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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