Is 1364 ( Part 4) : 1992 ISO 4035 : 1986 area ara sere Feu ate aH far seatita se art ara, It att feafeat aT 4 seatoita cael feafeat ( dene faa ad ) ( area @ M16 & M64 aH ) ( ater gate ) Indian Standard HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADES A AND B PART 4 HEXAGON THIN NUTS ( CHAMFERED ) (SIZE RANGE M1'6 TO M64) ( Third Revision } UDC 621°882'211 : 621'882'31 © Bis 1992 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR. SHAH ZAFAR MARG NEW DELHI 110002 October 1992 Price Group 2Belts, Nuts and Fastener Accessories Sectional Committee, LM 14 NATIONAL FOREWORD This Indian Standard ( Part 4) which is identical with ISO 4035: 1986 ‘Hexagon nuts (chamfered ) — Product grades A and B’ issued by the International Organization for Standardi- zation ( 1S0 ) was adopted by the Bureau of Indian Standards on the recommendation of Bolts, Nuts and Fastenor Accessories Sectional Committee (LM 14) and approval of the Light Mechanical Engineering Division Council. The standard was originally published in 1960 and revised in 1967. Subsequent to the publi- cation of 1967 editicn, many changes had been agreed upon at international level which have boon reflected in 1S 1367 series of standards covering ‘Technical supply conditions for thraaded steel fasteners’. Accordingly, 1S 1364 was revised and published in 5 parts covering hexagon head bolts, hexagon head screws and hexagon nuts, hexagon thin nuts (chamfered ) and hexagon thin nuts ( unchamfered ). ‘The second revision of the standard was based on ISO 4035 : 1979 ‘Hexagon thin nuts — Product grades A and B’ ( chamfered )’ issued by ISO. This third revision has been made by the adoption of latest version of ISO 4035 published in 1986 as Part 4. The remaining parts of the standard, that is, Part 1, Part 2, Part 3 and Part § have also been revised by adoption fof corresponding latest version of international Standards (ISOs). The following major changes have been made in this revision: a) The range of sizes has been enlarged to cover sizes from M 1°6 to M64; b) Non-preferred sizes have been included in separate table in line with ISO 4035; c) Stainless steel nuts with property class A2-70 end A2-50 have been included. In the 1967 version of this standard, the width across flats for M10 and M12 size fasteners was. specified 2s 17 mm and 19 mm respectively. However, in the 1983 version this width across flats was brought in line with ISO 4036 : 1979 and specified as 16 mm and 18 mm respectively for M10 and M12 size fasteners. Recognizing the fact that the new width across flat dimen sions may not be implementable immediately, the Explanatory Note to 1983 version of tho standard made a reference to this aspect. However. in the absonco of specitic_ coverage in the Standard, the new width across flat dimensions could not be implemented. Recognizing. the difficulty. of immediate changeover to new width across flats, the Committee felt that definite time frame may be given to the manufacturers for changeover and accordingly, it has been decided that width across flats as per 1967 version, that is, 17 mm and 19 mm for M10.and 12 size fasteners shall be permitted till 31 December 1994, It is also understood that some manufacturers are already equipped and manufacturing as per new width across flat dimensions and supplies as per new specifications aro encouraged. During this period, the manufacture of fasteners as per old versions shall be phased out and by 1 January 1995, it is expected that the entire fastener industry would have switched over to new width across flat dimensions and width across flats as per old version shall not be permitted, In the adopted standard, certain terminology and conventions are not identical with those used in Indian Standards; attention is specially drawn to the following: a) Wherever the words ‘International Standard’ appear, referring to this standard, they should be read as ‘Indian Standard’; and b) Comma (, ) has been used as 2 decimal marker while in Indian Standards the current Practice is to use point (. ) as the decimal marker. (Continued on third cover )18 1364 ( Part ISO 4036 : 19% Indian Standard HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADES A AND B PART 4 HEXAGON THIN NUTS ( CHAMFERED ) (SIZE RANGE M1'6 TO M64 ) ( Third Revision ) 0 Introduction This International Standard is part ofthe complete ISO product standard series on hexagon drive fasteners. The series com- prises: {)_hexagon head bolts (ISO 4014, ISO 4015, ISO 4016 and 180 8765); bb)_hexagon head screws (ISO 4017, 1S0 4018 and 180 8676); ©) hexagon nuts {ISO 4032, 1S0 4033, ISO 4034, 1S0 4035, ISO 4036, ISO 8673, SO 8874 and ISO 8675); d}_ hexagon flange bolts (ISO 4162, ISO 100, ISO 8102 and ISO 8104); 2} hexagon flange screws; ”” f) hexagon flange nuts (ISO 4161, 1S07043 and 180 7044; 49) structural bolting (1S0 4775 and ISO 7411 to ISO 7417), 1 Scope and field of application This International Standard gives specifications for chamfored hexagon thin nuts, with thread diameters from M1,6 to M4 in- clusive, with product grade A for sizes d < M16 and product grade B for sizes d > M16. H, in special cases, specifications other than those listed in this Intemational Standard are required, they should be selected from existing International Standards, e.g. 1SO 261, 1S0 898/2, 1S0 965, ISO 4759/1 1) These wil form the subjects of future International Standards, 2) At present at the stage of drat 2. References 1S0 225, Fasteners — Bolts, screws and nuts — Symbols and designations of dimensions. 180 261, /SO general purpose metric screw threads — General plan. 180 898/2, Mechanical properties of fasteners — Part 2: Nuts with specified proof load values. 1S0 898/5, Mechanical properties of fasteners — Part 5: Set screws and similar threaded fasteners not under tensile stresses. 10.965, (SO general purpose metric screw threads — Tolerances. 1S0 3269, Fasteners — Acceptance inspection. 1S0 3506, Corrosion-resistant stainless steel fasteners — ‘Specifications. 180 4042, Threaded components — Electroplated coatings.? 1S0 4759/1, Tolerances for fasteners — Part 1: Bolts, screws ‘and nuts with thread ciameters > 1,8 and < 150 mm and pro- duct grades A, B and C. 180 8839, Mechanical properties of fasteners — Bolts, screws, ‘studs and nuts made of non-ferrous metas. 1S0 8992, Fasteners — General requirements for bolts, screws, ‘studs and nuts.Is 1364 ( Part 4) : 1992 ISO 4036 : 1986 3 Dimensions Table 1 — Proferred sizes BEL WES[we ee Pir tas Loa oes ar [os ae sp \ min. 16 2 | 25 3 4 oes Ee es Pee eee © win | aa [ae [see | eon | 7.8 a a ron [07 [ass [a | tas | mn [os [vos oat [aa [a ron sme [a2 fe pe g ann ps [se [ae [ae | oe Dimensions in milimetres Threed size, 7 wig] a0 | Mae | Mo | Moe | Maz | Mao | MG | MOe Pi 2 25 | 3 35 [4 ca 5 | 8 oe 20 = | 6 | | : max. | 73 | 216 | 259 | os | @1 [a min [as | 27 | m2 77 | 882 e min. | 26.75 | 3295 | 39.58 23.56 | 10486 | r race axe et vO 2] B 2 " min. | 742 | 9,10 | 109 | 7 ws 7 ‘min. | 85 73 | 87 24 | 243 rom. = mex | 2 | 90 | 3 & Ca : min. | Ber | wre | 6 ee | 928 1) P = pitch ofthe threadTable 2 — Non-preferred sizes 18 1364 ( Part 4) : 1992 ISO 4035 : 1986 Dimensions in mitimatres 4 Specifications and reference standards Thread size, was [Mie] Mie | wa] ma] mas | woo | mas | mez | Meo Pir 06 [2 25 {| 25 | 3 35 | 4 “| 5 55, mn | 35 | |e | 2 7 |= |» | |e | @ ¢ Trax | 4 164 27 | 21 | 36 | 1 | we | o2 | oa | de rin 198 aa | | 6 | oo | 7 | 2 | wa min | 658 | 23,35 3723 | 452 | 6537 | 6644 | 7695 | 88,25 | 99,21 max | 2 7 | 35 | 5 | 98 | 2s _ min. | 1.75 | 642 “99 | 24 | 4 | we2 | 212 me 7 mins [4 51 73 | 99 | 23 | we | 7 rom =max | 6 | 2 4 a [so | |» i min. | 5.82 | 2067 EJ 0 ao sae | 68.1 1) = pitch ofthe thread, Table 3 — Specifications and reference standards sar maa Taian (ean! Sd ‘eo wer ae a aaa ae SO, BOTS Toa 72 coum | no MI6:B Tansee Bad aoa aad 7am 7 ah ee tater ctopeirg nqarona we ded oH eiemens needed or Se unas Per aniua Se apoane tes sonora ee oe Tsay Fa ps pce, SOS 5 Designation Example for the designation of @ chamfered hexagon thin nut with thread size d Hoxagon thin nut 1S0 4035 - M12 - 05 M12 and propery class 05: Reprography Unit, BIS, New Delhi, India( Continued from second cover ) In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist, The corresponding Indian Standards which are to be substituted in their place are listed below along with their degree of equivalence for the editions indicated: International Corresponding Indian Standard Degree of ‘Standard Equivalence Iso 225 18 8535 : 1987 Bolts, screws, nuts and accessories Identical Terminology and nomenclature (first revision ) 180 261 I$ 4218 (Part 2) : 1976 1SO metric screw threads: Technically Part 2 Diameter pitch combinations ( first revision ) equivalent Iso 898/2 Is 1367 ( Part 6) : 1980 Technical supply conditions Technically for threaded. steel fasteners: Part 6 Mechanical equivalent properties and test methods for nuts with specified Broof loads ( second revision ) Iso 898/5 lS 1367 ( Part 5) : 1980 Technical supply conditions ‘Technically for threaded steel fasteners : Part’ 6 Mechanical equivalent properties and test methods for set screws and Similar threaded fasteners not under tensile stresses Iso 965" ISO general purpose motric screw thread — Tolerances 1s0 965/1 Is 4218 ( Part 4) : 1976 ISO metric screw threads: Technically Part 4 Tolerancing system ( first revision ) equivalent 10 965/2 IS 4218 (Part 6): 1978 ISO metric screw threads: Technically Part 6 Limits of sizes for commercial bolts and nuts equivalent (diameter range 1 to 52 mm ) ( first revision ) 1s 965/3 1S 4218 (Part ) :1975 ISO metric screw threads: Technically Part 5 Tolerances ( first revision ) equivalent Iso 3269 Is 1267 ( Part 17) Technical supply conditions for Technically threaded steel fasteners : Part 17 Acceptance criteria equivalent (under preparation ) 1s0 3606 IS 1367 (Part 14 ) : 1984 Technical supply conditions Technically for threaded steel fasteners : Part 14 Stainless steel equivalent threaded fasteners ( second revision ) 10 4042 Is 1367 (Part 11.) Technical supply conditions for Technically threaded steel’ fasteners : Part 11 Electroplated equivalent coatings on threaded steel fastoners ( under preparation ) 1S 4759-1 1S 1367 ( Part 2): 1979 Technical supply conditions Technically for threaded steel fasteners . Part 2 Product grades equivalent, and tolerances ( second revision ) Iso 8839 Is Mechanical properties of fasteners ~ Bolts, Technically screws, studs and nuts made of non-ferrous metals equivalent (under preparation ) Iso 8992 1S 1367 ( Part 1) : 1980 Technical supply conditions Equivalent for threaded steel fasteners : Part 1 Introduction and general information ( second revision ) ALTERATION In clause 5, the designation of a chamfered hexagon nut may be read as ‘Hexagon thin nut Is 1364 ( Part 4) — ISO 4035 — M12 — 05" in place of ‘Hexagon thin nut ISO 4035 — M12 — 08°. * 150 865 has since been revised into parts. However, r fant parts have been shown in the references.Bareau of Indian Standards BIS is a statutory institution established under the Bureau of Indian Standards} Act, 1986 to Promote harmonious development of the activities of standardization, marking and quality Certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications"may be reproduced ‘any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications ), BIS. Revision of Indian Standards Indian Standards are reviewed periodically and revised, when necessary and amendments, if any, are issued from time to time. Users of Indian Standards should ascertain that they are in postession of the larest amendments or edition. Comments on this Indian Standard may be Sent to BIS giving the following reference: Doc : No. LM 14 ( 0165 ) Amendments Issued Since Publication ‘Amend No. Date of Issue Text Affected BUREAU OF INDIAN STANDARDS. Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones : 331 01 31, 33113 75 Telegrams : Manaksanstha (Common to all Offices ) Regional Offices : Telephone Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg 33101 31 ‘NEW DELHI 110002 331 13 75 Eastern : 1/14 C. I. T. Scheme VII M, V. I. P. 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