Iso 4032 Hexagon Nuts Style 1

INTERNATIONAL STANDARD

IS0 4032 Third edition 1999-08-15

Corrected and reprinted 2001-03-01

Hexagon nuts, style 1 - Product grades A and B Écrous hexagonaux, style I

- Grades A et B

Reference number

IS0 4032:1999(E) --`,,`,-`-`,,`,,`,`,,`---

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STD-IS0 4032-ENGL 1777

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OBb8010 2 2 2 D

IS0 4032: 1999(E)

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IS0 1999

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S T D * I S O 4032-ENGL 1999 m 41953903 OBbBO1L L b 9

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I S 0 4032: 1999( E)

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Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take pari in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISOAEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. I

International Standard IS0 4032 was prepared by Technical Cornmittee ISO/TC 2, fasteners. This third edition cancels and replaces the second edition (IS0 4032:1986) which has been technically revised.

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STD=ISO 4032-ENGL 1 9 9 9 W 4851903 08b8012 OT5 IS0 4032:1999(E)

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IS0

Introduction This International Standard is part of the complete IS0 product standard series on external hexagon drive fasteners. The series comprises: hexagon head bolts (IS0 4014 to IS0 4016 and IS0 8765);

b)

hexagon head screws (IS0 4017, IS0 4018 and IS0 8676);

c)

hexagon nuts (IS0 4032 to IS0 4036, IS0 8673 to IS0 8675);

d)

hexagon bolts with flange (IS0 4162 and IS0 15071);

e)

hexagon nuts with flange (IS0 4161 and IS0 10663);

f)

structural bolts and nuts (IS04775, IS0 7411 to I S 0 7414 and IS0 7417).

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a)

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STD*ISO 4032-ENGL 1777 m 4853703 O B b 8 O L 3 T I 1

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INTERNATIONAL STANDARD o IS0

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IS0 4032:1999(E)

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Hexagon nuts, style 1 - Product grades A and B 1 Scope This International Standard specifies the characteristics of hexagon nuts, style 1, with threads from M1.6 up to including M64, with product grade A for threads d 6 M16 and product grade B for threads d > M16.

If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, for example IS0 724, IS0 898-2, IS0 965-1, IS0 3506-2 and IS0 4759-1. NOTE

For hexagon nuts style 2, see IS0 4033.

2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of I S 0 and IEC maintain registers of currently valid International Standards.

IS0 225:1983, Fasteners - Bolts, screws, studs and nuts - Symbols and designations of dimensions.

IS0 724:1993, IS0 general-purpose metric screw threads - Basic dimensions. IS0 898-2:1992, Mechanical properties of fasteners - Part 2: Nuts with specified proof load values - Coarse thread.

IS0 965-1:1998, IS0 general purpose metric screw threads - Tolerances - Part I : Principles and basic data.

IS0 3269:-'

),

Fasteners -Acceptance inspection.

IS0 3506-2:1997, Mechanical propetties of corrosion-resistant stainless steel fasteners - Part 2: Nuts. IS0 4042:1999, Fasteners - Electroplated coatings.

IS0 4759-1:A), Tolerances for fasteners - Part I : Bolts, screws, studs and nuts - Product grades A, B and C. IS0 6157-2:1988, Fasteners - Surface discontinuities - Part 2: Nuts.

IS0 8839:1986, Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous metals.

IS0 8992:1986, Fasteners - General requirements for bolts, screws, studs and nuts. IS0 10683:-3),

Fasteners - Non-electrolytically applied zinc flake coatings.

')

To be published. (Revision of IS0 3269:1988)

*)

To be published. (Revision of IS0 4759-1:1978)

3, To be published.

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o IS0

I S 0 4032:1999(E)

3 Dimensions See Figure 1 and Tables 1 and 2. Symbols and descriptions of dimensions are defined in I S 0 225. I

ßb

Iml a

Washer-face form to be ordered separately ß = 15"to3Oa

c

0 = 90" to 120"

Figure 1

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S T D * I S O Li032-ENGL 1777

Li851703 08b8015 804

o IS0

IS0 4032:1999(E)

Table 1 - Preferred threads Dimensions in millimetres

Thread (d)

M4

I

M5

I

M6

1

M8

1

M10

1

M12

I

max.

o.1 da

max. min.

dw

min.

e

min.

>n

max.

2,9 2.5

3,45 3.00

2,4 3.41

3,l 4.32

41 5.45

46 6.01

1

1,60 1.35

I

0,8 3,20 3,02

min. nom. =max.

S

2,3 2.0

1,30 1.05

min. mw

1,84 1.60

min.

1

2,OO 1.75

I

1

2,40 2.15

I

I ,4 5,OO 4,82

1,1 4,OO 3,82

1,7 5,50 5,32

tt1

a

P

is the pitch of the thread.

Table 2

- Non-preferredthreads Dimensions in millimetres

Thread (4

M3,5 0,6

Pa

M18

M14 2

C

dW

min.

e

min.

IW S

min. nom. = max. min.

a

5 6,58

I i

6,OO 5.82

0,8

03

02 29,l 27,O

0,2 35,6

15,l 12,l 27,OO

I 21,OO 20.67

0,8

19,5 18,O 24,9 29,56 15,8

19,6 23,36

i

M27 3

M33

25

1

26,16

1

23,7 22,o 31,4 37,29 19,4 18,l 14,5 34 33

I I

I

38 45,2 23,8 22,5 18 41 40

M39 4

3,5

1,o 0,3 42,l

33,O 46,6

I 1

1

55,37 28,7 27,4 21,9 50 49

I

I

I

39,O 55,9 66,44 33,4 31,8 25,4 60.0 58,8

I I

I

M45

M52

M60

4,5

5

5,5

1,o

1,o 0,3 56,2 52,O

0,3 64,8 60,O

03 48,6 45,O 64,7 76,95 36,O 34,4 27,5 70,O 68,l

I I

I

74,2 88,25 42,O 40,4 32,3 80.0 78,l

1,o

833 99,21 48,O 46,4 37,l

I 90.0 I l

I

87,8

P is the pitch of the thread.

3

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STD-IS0 9032-ENGL

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IS0 4032:1999(E)

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4 Specifications and reference standards See Table 3.

Table 3

- Specifications and reference standards

Material

t

Steel

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Standard

Thread

Tolerance

Non-ferrous meta

6H

IS0 724. IS0 965-1

International Standards Property classa

d < M3: as agreed

d

M3 6 d G M39: 6, 8, 10

M24 < d

d > M39: as agreed

International M3 G d C M39: IS0 898-2 Standards d < M3 and d > M39: as agreed

Tolerances

1

IS0 8992

General requirements

Mechanical properties

Stainless steel

C

M24: A2-70, A4-70 C

M39: A2-50, A440

Materials specified in IS0 8839

d > M39: as agreed

d d

M39: I S 0 3506-2

> M39: as agreed

Product grade

IS0 4759-1

International Standard

Requirements for electroplating are covered in IS0 4042 Requirements for nonelectrolyticallyapplied zinc Hake coatings are covered ¡ i IS0 10683

Requirements foi electroplating are covered in IS0 4042

If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between customer and supplier. Limits for surface discontinuitiesare covered in IS0 6157-2

Acceptability

Ia

For acceptance procedure, see IS0 3269.

For other property classes see I S 0 898-2 for steel and I S 0 3506-2 for stainless steel respectively.

5 Designation EXAMPLE A hexagon nut, style 1, with thread M12 and property class 8 is designated as follows:

-

-

Hexagon nut IS0 4032 M12 8

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STDDISO '4032-ENGL 1797 D '4851703 08b8017 b87

o IS0

I S 0 4032:1999(E)

Bibliography

[l] IS0 4014:1999,Hexagon head bolts - Product grades A and B. [2] IS0 4015:1979,Hexagon head bolts - Product grade B - Reduced shank (shank diameter approximately equal to pitch diameter).

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[3] IS0 4016:1999,Hexagon head bolts - Product grade C.

[4] IS0 4017:1999,Hexagon head screws - Product grades A and 6.

'

~

1

[5] IS0 4018:1999,Hexagon head screws - Product grade C. [6] IS0 4033:1999,Hexagon nuts, style 2 - Product grades A and B. [7] IS0 4034:1999,Hexagon nuts - Product grade C. [8] IS0 40351999,Hexagon thin nuts (chamfered) - Product grades A and B. [9] IS0 4036:1999,Hexagon thin nuts (unchamfered) - Product grade B. [l O] IS0 41 61:1999,Hexagon nuts with flange - Coarse thread.

[l 11 IS0 41 62:-4), Hexagon bolts with flange - Small series - Product grade combination NB.

[12]IS0 4775:1984,Hexagon nuts for high-strength structural bolting with large width across flats - Product grade B - Property classes 8 and 1O. [13] IS0 741 1 :1984,Hexagon bolts for high-strength structural bolting with large width across flats (thread lengths according to /SO 888) - Product grade C - Property classes 8.8 and 70.9.

[14]IS0 7412:1984,Hexagon bolts for high-ctrength structural bolting with large width across flats (short thread length) - Product grade C - Property classes 8.8 and 1O. 9.

11 51 IS0 7413:1984,Hexagon nuts for structural bolting, style 1, hot-dip galvanized (oversize tapped) - Product grades A and B - Property classes 5,6 and 8. [16]IS0 7414:1984,Hexagon nuts for structural bolting with large width across flats, style 7 - Product grade B Property class 70. [ 171 IS0 7417:1984,Hexagon nuts for structural bolting, style 2, hot-dip galvanized (oversize tapped) - Product grade A - Property class 9. [ 181 IS0 8673:1999,Hexagon nuts, style 7, with metric fine pitch thread - Product grades A and 6. [ 1 91 IS0 86743999,Hexagon nuts, style 2, with metric fine pitch thread - Product grades A and B.

[20]IS0 86751999,Hexagon thin nuts (chamfered) with metric fine pitch thread - Product grades A and B. [21]IS0 8676:1999,Hexagon head screws with metric fine pitch thread - Product grades A and B.

4, To be published. (Revision of

IS0 41 62:1990)

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STDeISO '4032-ENGL 1777 W '485L703 O B b B O L B 513 I S 0 4032:1999(E)

[22] IS0 8765:1999,Hexagon head bolts with metric fine pitch thread - Product grades A and B.

[23]IS0 10663:1999,Hexagon nuts with flange - Fine pitch thread. [24]IS0 15071 :1 999,Hexagon bolts with flange - Small series - Product grade A.

6

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STDmISO 4032-ENGL 1 9 9 9

4851903 08b8019 4 5 T

o IS0

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I S 0 4032:1999(€)

ICs 21.060.20 Price based on 6 pages

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