GB/T 6172.1-2016 English PDF (GBT6172.1-2016)

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GB/T 6172.1-2016: Hexagon thin nuts (chamfered)
GB/T 6172.1-2016
Hexagon thin nuts (chamfered)
ICS 21.060.20
J13
National Standards of People's Republic of China
Replacing GB/T 6172.1-2000
Hexagon thin nuts
(ISO 4035.2012, Hexagonthinnutschamfered (style0) -
ProductgradesAandB, MOD)
Issued on. 2016-02-24
2016-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 6172 This section is "(part) hex nuts," one national standard series, the series includes.
--- GB/T 411 type hexagon nuts C grade;
--- GB/T 61701 type hexagon nuts;
--- GB/T 61711 type hexagon nuts with fine pitch thread;
--- GB/T 6172.1 Hexagon thin nuts;
--- GB/T 6173 Hexagon thin nuts with fine pitch thread;
--- GB/T 6174 Hexagon thin nut without chamfer;
--- GB/T 61752 type hexagon nuts;
--- GB/T 61762 type hexagon nuts with fine pitch thread;
--- GB/T 6177.1 2 type hexagon nuts with flange;
--- GB/T 6177.2 2 type hexagon flange nuts fine teeth.
This part of GB/T 6172 Part 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 6172.1-2000 "Hexagon thin nuts", compared with the GB/T 6172.1-2000, the main technical changes are as follows.
--- Delete "For other technical requirements, GB/T 3098.2 and GB/T 3103.1) Select." (Chapter 1 of the 2000 edition);
--- Reference standard unified thread GB/T 193, GB/T 9145 (Chapter 2);
--- To increase the mechanical properties of steel nuts. QT --- quenched and tempered (Table 3).
This section uses redrafted law revision using ISO 4035.2012 "chamfer Hexagon thin nuts (Type 0) Product grades A and B"
(In English).
This part of ISO 4035.2012 technical differences and their reasons are as follows.
--- Delete ISO 4035 states. "For other technical requirements, ISO 4759-1, select" (Chapter 1), not part of the standard
Content provisions;
--- Normative reference document, instead of using our standards with international standards (Chapter 2), increase the reference GB/T 90.2 (Table 3),
GB/T 193 (Table 3), GB/T 5267.4 (Table 3), GB/T 9145 (Table 3) and GB/T 1237 (5.1), the deletion of ISO 724,
ISO 965-1 references to meet our basic standard fasteners;
--- For the implementation of basic standards, the increase of steel nuts. QT --- quenched and tempered (Table 3);
--- Increase in packaging technology requirements (Table 3), to meet our basic standard fasteners;
--- Modify tag example is a simplified markup example (5.2), to comply with the provisions of GB/T 1237's.
This standard also made the following editorial changes.
--- To modify the standard name;
--- Delete references ISO 4035.
This part is proposed by China Machinery Industry Federation.
This part of the National Standardization Technical Committee fasteners (SAC/TC85) centralized.
This section is responsible for drafting unit. Productivity Promotion Center in the machine.
Participated in the drafting of this section. Zhoushan Zhengyuan Standard Parts Co., Ltd., Haiyan Yuxing Nuts Co., Ltd., Zhejiang Haili shares have
Limited.
This part of the National Standardization Technical Committee Secretariat responsible for the interpretation of fasteners.
This part of the standard replaces the previous editions are.
--- GB/T 53-1958, GB/T 53-1966, GB/T 53-1976;
--- GB/T 54-1958, GB/T 54-1966, GB/T 54-1976;
--- GB/T 6172-1986, GB/T 6172.1-2000.
Hexagon thin nuts
1 Scope
GB/T 6172 provisions of this part of the Hexagon thin nut type size, technical requirements and marking.
This section applies to thread sizes of M1.6 ~ M64, property class 04,05, A2-025, A2-035, A4-025, A4-035, CU2,
CU3 and AL4, product grade A and B, chamfer Hexagon thin nuts. A class for D≤16mm nut; B grade for D>
16mm nut.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies 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 series ordinary thread diameter and pitch (GB/T 193-2003, ISO 261.1998, MOD)
GB/T 1237 fasteners labeling method (GB/T 1237-2000, eqvISO 8991. 1986)
GB/T 3098.2 Mechanical properties of fasteners (GB/T 3098.2-2015, ISO 898-2.2012, MOD)
GB/T 3098.10 Mechanical properties of fasteners non-ferrous metal manufacturing bolts, screws, studs and nuts (GB/T 3098.10-
1993, eqvISO 8839. 1986)
GB/T 3098.15 mechanical properties of stainless steel fasteners nuts (GB/T 3098.15-2014, ISO 3506-2.2009, MOD)
GB/T 3103.1 Tolerances for fasteners - Bolts, screws, studs and nuts (GB/T 3103.1-2002, idtISO 4759-1.2000)
GB/T 5267.1 fasteners plating layer (GB/T 5267.1-2002, ISO 4042.1999, IDT)
GB/T 5267.2 fasteners non-electrolytic zinc flake coating (GB/T 5267.2-2002, ISO 10683.2000, IDT)
GB/T 5267.3 fasteners hot-dip galvanizing layer (GB/T 5267.3-2008, ISO 10684.2000, IDT)
GB/T 5267.4 fastener surface treatment corrosion resistant stainless steel passivation (GB/T 5267.4-2009, ISO 16048.2003,
IDT)
GB/T 5276 Fasteners Bolts, screws, studs and nuts - Symbols and designations size (GB/T 5276-2015, ISO 225.
2010, MOD)
GB/T 5779.2 nut fastener surface defects (GB/T 5779.2-2000, idtISO 6157-2.1995)
GB/T 9145 common thread moderate accuracy, preferably series limit size (GB/T 9145-2003, ISO 965-2.1998,
MOD)
GB/T 16938 Fasteners Bolts, screws, studs and nuts - General technical conditions (GB/T 16938-2008, ISO 8992.
2005, IDT)
3 Dimensions
Nut pattern dimensions shown in Figure 1, Table 1 and Table 2.
Size code and labeling should be consistent with GB/T 5276.
aβ = 15 ° ~ 30 °;
bθ = 110 ° ~ 120 °.
figure 1
Table 1 is preferably thread size in millimeters
Thread size D M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12
Pa 0.35 0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75
da
max 1.84 2.30 2.90 3.45 4.60 5.75 6.75 8.75 10.80 13.00
min 1.60 2.00 2.50 3.00 4.00 5.00 6.00 8.00 10.00 12.00
dw min 2.40 3.10 4.1 4.60 5.90 6.90 8.90 11.60 14.60 16.60
e min 3.41 4.32 5.45 6.01 7.66 8.79 11.05 14.38 17.77 20.03
max 1.00 1.20 1.60 1.80 2.20 2.70 3.20 4.00 5.00 6.00
min 0.75 0.95 1.35 1.55 1.95 2.45 2.90 3.70 4.70 5.70
mw min 0.60 0.80 1.10 1.20 1.60 2.00 2.3 3.0 3.8 4.60
Nominal = max 3.20 4.00 5.00 5.50 7.00 8.00 10.00 13.00 16.00 18.00
min 3.02 3.82 4.82 5.32 6.78 7.78 9.78 12.73 15.73 17.73
Thread size D M16 M20 M24 M30 M36 M42 M48 M56 M64
Pa 2 2.5 3 3.5 4 4.5 5 5.5 6
da
max 17.30 21.60 25.90 32.40 38.90 45.40 51.80 60.50 69.10
min 16.00 20.00 24.00 30.00 36.00 42.00 48.00 56.00 64.00
dw min 22.50 27.70 33.20 42.80 51.10 60.00 69.50 78.70 88.20
e min 26.75 32.95 39.55 50.85 60.79 71.30 82.60 93.56 104.86
max 8.00 10.00 12.00 15.00 18.00 21.00 24.00 28.00 32.00
min 7.42 9.10 10.90 13.90 16.90 19.70 22.70 26.70 30.40
mw min 5.90 7.30 8.70 11.10 13.50 15.80 18.20 21.40 24.30
Nominal = max 24.00 30.00 36.00 46.00 55.00 65.00 75.00 85.00 95.00
min 23.67 29.16 35.00 45.00 53.80 63.10 73.10 82.80 92.80
aP --- pitch.
Table 2 Non-preferred thread size in millimeters
Thread size D M3.5 M14 M18 M22 M27 M33 M39 M45 M52 M60
Pa 0.6 2 2.5 2.5 3 3.5 4 4.5 5 5.5
da
max 4.00 15.10 19.50 23.70 29.10 35.60 42.10 48.60 56.20 64.80
min 3.50 14.00 18.00 22.00 27.00 33.00 39.00 45.00 52.00 60.00
dw min 5.10 19.60 24.90 31.40 38.00 46.60 55.90 64.70 74.20 83.40
e min 6.58 23.36 29.56 37.29 45.20 55.37 66.44 76.95 88.25 99.21
max 2.00 7.00 9.00 11.00 13.50 16.50 19.50 22.50 26.00 30.00
min 1.75 6.42 8.42 9.90 12.40 15.40 18.20 21.20 24.70 28.70
mw min 1.40 5.10 6.70 7.90 9.90 12.30 14.60 17.00 19.80 23.00
Nominal = max 6.00 21.00 27.00 34.00 41.00 50.00 60.00 70.00 80.00 90.00
min 5.82 20.67 26.16 33.00 40.00 49.00 58.80 68.10 78.10 87.80
aP --- pitch.
4 Technical conditions and reference standards
Technical conditions and standards referenced in Table 3.
Table 3 Technical conditions and reference standards
Stainless steel material non-ferrous metal
General technical conditions GB/T 16938
Screw thread
Tolerance 6H
Standard GB/T 193, GB/T 9145
Mechanical behavior
grade
standard
D \u003cM5.按协议 D≤M24.A2-035、A4-035
M5≤D≤M39. 04,
05 (QT)
M24 \u003cD≤M39.
A2-025, A4-025
D> M39. by agreement D> M39. by agreement
GB/T 3098.2 GB/T 3098.15
CU2, CU3, AL4
GB/T 3098.10
tolerance
Product grades D≤M16. A; D> M16. B
Standard GB/T 3103.1
Surface defects GB/T 5779.2 - -
Surface treatment
Without treatment;
Electroplating technology required by the GB/T 5267.1;
Non-electrolytic zinc flake coating technology required by the
GB/T 5267.2;
Hot-dip galvanized according to the technical requirements
GB/T 5267.3
Simple processing;
Passivation treatment technology required by the
GB/T 5267.4
Simple processing;
Plating technology required by the
GB/T 5267.1
For additional technical requirements or surface treatment, supply and demand should Agreement
Acceptance and packaging GB/T 90.1, GB/T 90.2
QT --- quenching and tempering.
5 Mark
5.1 labeling method
Marking method according to GB/T 1237 regulations.
5.2 tag example
Thread size is M12, property class 04, the surface is not treated, the product grade A grade mark chamfer Hexagon thin nut.
Nut GB/T 6172.1 M12
6102-
1􀏕 2716
T /