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है”ह”ह

IS 15628 (2005): Slotted set screws with flat point [PGD31: Bolts, Nuts and Fasteners Accessories]

IS 15628:2005ISO 4766:1983

(Superseding IS 2388: 1971)

Wm%Tmw

m-t RI-t ma Wii+m ‘* W/5n

Indian Standard

SLOTTED SET SCREWS WITH FLAT POINT

ICS21.O6O.1O

0 BIS 2005

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

December 2005 Price Group 2

. .

Bolts, Nuts and Fasteners Accessories Sectional Committee, PG 33

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 4766:1983 ‘Slotted set screws with flat point’ issuedby the International Organization for Standardization ( ISO ) was adopted by the Bureau of IndianStandards on the recommendations of the Bolts, Nuts and Fasteners Accessories Sectional Committeeand approval of the Medical Instruments General and Production Engineering Division Council.

The other standards in the series are given below:

IS 15629:2005 Slotted set screws with cone point

IS 15630:2005 Slotted set screws with long dog point

IS 15631 :2005 Slotted set screws with cup point

Earlier the above subjects were covered by IS 2388:1971 ‘Slotted grub screws ( first revision)’ and thesizes were covered from M 1 to M 24 whereas this draft covers the sizes from M 1.2 to M 12. TheCommittee responsible for formulation of these standards decide-d that after the publication of abovestandards, IS 2388: 1971 which earlier covered the above subject, shall be withdrawn.

The text of 1S0 Standard has been approved as suitable for publication as an Indian Standard withoutdeviations. .Certain terminology and conventions are, however, not identical to those used in the IndianStandards. Attention is drawn especially to the following:

a) Wherever the words ‘International Standard’ appear, referring to this standard, they should beread as ‘Indian Standar-d’.

b) Comma ( , ) has been used as a decimal marker while in Indian Standards, the cur~ent practiceis to use a point ( . ) as the decimal marker.

In this adopted standard, reference appears to certain International Standards for which IndianStandards also exist. The corresponding Indian Standards, which are to be substituted in their places,are listed below along with their degree of equivalence for the editions indicated:

International “Standard

ISO 225:1983 Fasteners — Bolts,screws, studs and nuts — Symbolsand designations of dimensions

ISO 261 : 1998 ISO generalpurpose metric screw threads —General plan

ISO 888: 1976 Bolts, screws andstuds — Nominal length, and threadlengths for general purpose bolts

ISO 898-5 : 1998 Mechanicalproperties of fasteners — Part 5:Set screws and similar fastenersnot under tensile stresses

Corresponding Indian Standard Degree of Equivalence

IS 8536:1987 Fasteners — Bolts, Identicalscrews, studs and nuts — Symbolsand designations of dimensions( first revision)

IS 4218 ( Part 2 ) :2001 ISO generalpurpose metric screw threads:Part 2 General plan ( second revision)

IS 4206:1987 Dimensions for nominallengths and thread lengths for bolts,screws and studs ( first revision )

IS 1367 ( Part 5 ) :2002 Technicalsupply conditions for threaded steelfasteners: Part 5 Mechanicalproperties of fasteners made ofcarbon steel and alloy steel — Setscrews and similar fasteners notunder tensile stress ( third revision)

do

do

do

( Continued on third cover)

IS 15628:2005ISO 4766:1983

Indian Standard

SLOTTED SET SCREWS WITH FLAT POINT

1 Scope and field of application

This International Standard specifies tha characteristics of slotted sat screws with flat point and thread sizes from M 1,2 to ‘M ?2

inclusive and product grade A.

If other specifications am required, it is recommended that they should be selected from existing Irrtemational Standards, for example1s0 261, 1so 686, 1s0 SW, ISO 965, 1s0 3506.

2 References

ISO 225, Fasteners – Bolts. screws, studs and nub – Symbols and desrgnatims of dimensions.

ISO 261, JSO gen~l purpose metric screw threads – Generat plan.

ISO 686, Bolts, screws and studs – Nominal lengths, and thread lengths for general purpose bolts.

ISO 6W, -Mechanical properties of fasteners.

ISO 965, ISO general purpose metric screw-threads – Tolerances.

tSO 3269, Fasteners – Acceptance inspection. 1)

ISO 3506, Corrosion-resistant stainless stad fasteners - Spec#ications.

ISO 4Q42, Threaded components – Electroplated coatings components. 1)

ISO 4753, Fastenem – Ends of parta w“th external metric ISO thread.

ISO 4759/1, Tolerances for fastenera - Rwt 1: Bolts, screws and nuts w“th thread diameters > 1,6and < 150mm and productgrades A, B and C.

1) At present at the stage of draft.

IS 15628:2005ISO 4766:1983

3 Dimensions

● The 120° angle ia mandatory forshort length screws above the dottedstepped line.

● * Thtw15° angle applies only to theportion of the point below the rootdiameter of the thread.

1

Oimenaiona in millimetrea

Thread size d M 1,2 M 1.6 M2 M 2,5 M3 (M 3,6)1) M4 MS M6 M8 M 10 M 12

p2) 0,25 0,35 0,4 0,45 0,5 0,6 0,7 0,8 1 1,25 1,5 1,75

df max. Minor thread diameter

min. 0,35 0,55 0,75 1,25 1,75 1,95 2,25 3,2 3,7 5,2 6,84 8,14dP

max. 0,6 0,8 1 1,5 2 2,2 2,5 3,5 4 5,5 7 8,5

nom. 0,2 0,25 0,25 0,4 0,4 0,5 0,6 0,8 1 1,2 1,6 2

n min. 0,26 0,31 0,31 0,46 0,46 0,58 0,88 0,88 1,05 1,25 1,88 2,08

max. U,4 0,45 0,45 0,6 0,6 0,7 0,8 1 1,2 1,51 1,91 2,31

min. 0,4 0,56 0,64 0,72 0,8 0,86 1,12 1,28 1,6t

2 2,4 2,8

max. 0,52 0,74 0,84 0,85 1,05 1,21 1,42 1,83 2 2,5 3 3,6

[1), 3)

nom. min. max.

2 1,8 2,2I1

2,5 2,3 2,7. -----

I

3 2,8 3,2b. --

1

4 3,7 4.3L. ---- ----

I

5 4,7 5,3b. ---, .- -

-1

6 5,7 6.3b. - --

1

8 7,7 8,3---- --— I

a10 9,7 10,3 Range

-- 3

12 11,6 12,4 ofb. ---

(14) 13,6 14,4 commercial

?6 15,6 18,4 Iangtha

20 19,6 20,4

25 24,6 25,4

X) 28,6 30,4

36 34,5 35,5

40 38,5 40,5

45 44,5 45,5

60 48,5 50,5

55 54,4 55,6

80 58,4 80,6

1) Sizaa in brackets should be avoidad if possible.

2) P = pitch of the thread.

3) Min. and max. values according to ISO 4758/1, but rounded to one decimal plaoa.

IS 16628:2005ISO 4766:1983

4 Specificationsand reference InternationalStandards

Material I steel I Stainiess steal I Non-ferrous metal I

ThreadTolerance I 6g

International Standards 1s0 261, Iso W5 11

Property class 14H, 22H A1 -50 1)Mechanical properties

International Standards Isow6/5 Iso3506Product grade A

TolerancesInternational Standard 1s04759/1

Plain

FinishRequirements for electroplating are covamd in ISO 4042.

If different alactroplating requirements ara desired or if requirements are needed for

. other finishes, they should be negotiated between supplier and customer.

Acceptability Tha acceptsnca procedure is covered in ISO 3269.

1)

5

will be covered in a futura International Standard.

Designation

Example for the designation of a slotted aet screw with flat point, thread size d = M5, nominal length f = 12 mm and propertyclass 14H:

Set ecrew 1S0 4755- M5 x 12- 14H

3

IS 15628:2005ISO 4766:1983

NATIONAL ANNEX A

( Natior7a/ Foreword )

A-1 PACKAGING..

The packaging of hexagon head bolts shall be in accordance with IS 1367 ( Part 18 ) :1996‘Industrial fasteners — Threaded steel fasteners — Technical supply conditions: Part 18 Packaging( third revision )’.

A-2 BIS C-ERTIFICATION MARKING

Details available with the Bureau of Indian Standards.

( Continued from second cover)

International Standard

ISO 965-1 : 1998 1.S0 generalpurpose metric screw threads —Tolerances — Part 1 : Principlesand basic detail

ISO 965-2 : 1998 ISO generalpurpose metric screw threads —Tolerances — Part 2 : Limits ofsizes for general purpose bolt andnut threads — Medium quality

ISO 965-3 : 1998 ISO generalpurpose metric screw threads —Tolerances — Part 3: Deviationsfor constructional threads

ISO 3269 : 19881) Fasteners —Acceptance inspection

ISO 3506-3 : 1997 COrrosion-resistant stainless steel fasteners —Specifications — Part 3: Set screwsand similar fasteners not undertensile stresses

ISO 4042 : 1999 Threadedcomponents — Electroplatedcoatings components

1s0 4753 : 19832) Fasteners —Ends of parts with external metricISO thread

ISO 4759-1 :2000 Tolerances forfasteners — Part 1 : Bolts, screwsand nuts with thread diameters2 1.6 and < 150 mm and productgrades A, B -and C

Corresponding Indian Standard Degree of Equivalence

IS 14962( Part 1 ) :2001 ISO general identicalpurpose metric screw threads —Tolerances: Part 1 Principles andbasic data

IS 14962( Part 2 ) :2001 1S0 general dopurpose metric screw threads —Tolerances: Part 2 Limits of sizesfor generaI purpose external andinternal screw threads — Mediumquality

IS 14962 ( Part 3 ) :2001 ISO generalpurpose metric screw threads —Tolerances: Part 3 Deviations forconstructional screw threads

IS 1367 ( Part 17 ) :2004 Technicalsupply conditions for threaded steelfasteners: Part 17 Inspection,sampling and acceptance procedure( fourth revision)

IS 1367 ( Part 14/Sec 3 ) :2002Technical supply conditions forthreaded steel fasteners: Part 14Mechanical properties o-fcorrosion-resistant stainless-steel fasteners,Section 3 Set screws .and similarfasteners not under tensile stresses( third revision)

IS 1367 ( Part 11 ) :2002 Technicalsupply conditions for threaded steelfasteners: Part 11 Electroplatedcoatings ( third revision )

IS 1368:2003 Fasteners — Endsof parts with external metricISO thread ( fourth revision )

IS 1367 ( Part 2 ) :2002 Technicalsupply conditions for threaded steelfasteners: Part 2 Tolerances forfasteners — Bolts, screws, studsand nuts — Product grades A, B and

do

do

do

do

do

do

C ( third revision)

As decided by the Committee additional requirements of packaging, and BIS Certification Marking aregiven in National Annex A. These additional requirements are part of this standard.

For the purpose of deciding whether a particular requirement of this standard is complied with, the finalvalue, observed or calculated, expressing the result of a test or analysis, shall be rounded off inaccordance with IS 2 : 1960 ‘Rules for rounding off numerical values ( revised )’. The number ofsignificant places retained in the rounded off value should be the same as that of the specified valuein this standard.

1) sincer~vis~d in 2000.”

2) Since revised in 1999.

Bureau of Indian Standards

61S is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of stan.dar.dization, marking and quality certification ofgoods and attending to connected matters in the country.

.Copyright

61S has the copyright of all its publications. No part of these publications maybe reproduced in anyform without the prior permission in writing of BIS. This does not preclude the free use, in the courseo-f implementing the standard, of necessary details, such as symbols -and sizes, type or gradedesignations. Enquiries celating to copyright be addressed to the Director (Publications), BIS,

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis-of comments. Standards arealso reviewed periodically; a standard along with amendments is reaffirmed when such reviewindicates that no changes are needed; if the review indicates that changes are needed, it is takenup for revision. Users of Indian Standards should ascertain that they are in possession of the latestamendments or edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards : MonthlyAdditions’.

This Indian Standard has been developed from Doc : No. PG/BP 33 ( 0431 ).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

.

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