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1、International Standard f$ 7417 0 +a-, 4 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*MEYHAPOHAR OPrAHHIAlJMR l-l0 CTAHAPTH3Al(WMWRGANlSATlON INTERNATIONALE DE NORMALISATION Hexagon nuts for structural bolting - Style 2, hot-dip galvanized (oversize tapped) - Product grade A - Property class 9 krou
2、s hexagonaux galvanis b) hexagon head screws (IS0 4017 and IS0 4618); c) hexagon nuts (IS0 4632, IS0 4633, IS0 4034, IS0 4035 and IS0 4636); tolerance class 6AX. This International Standard covers product grade A nuts in thread diameters from Ml0 up to and including M16. If in special cases specific
3、ations other than those listed in this International Standard are required, they should be selected from existing International Standards, for example, IS0 261, IS0 898, IS0 965 and IS0 4759/l. NOTE - Hot-dip galvanized nuts with 6H threads may be supplied by agreement between the manufacturer and t
4、he purchaser. Such nuts are covered in IS0 4033. 2 References d) hexagon flanged bolts; 1) e) hexagon flanged screws; 1) f) hexagon flanged nuts (IS0 4161); g) structural bolting (IS0 4775 and IS0 7411 to IS0 7417). 1 Scope and field of application This International Standard gives specifications fo
5、r hexagon nuts, style 2, with metric dimensions, property class 9 hot-dip galvanized in accordance with IS0 1461 and tapped oversize to IS0 261, IS0 general purpose metric screw threads - General plan. IS0 898, Mechanical properties of fasteners. IS0 965, IS0 general purpose metric screw threads - T
6、olerances. IS0 1461, Metallic coatings - Hot-dip galvanized coatings on fabricated ferrous products - Requirements. IS0 3269, Fasteners - Acceptance inspection. IS0 4759/l, Tolerances for fasteners - Part 1: Bolts, screws and nuts, with thread diameters I,6 and 150 mm and product grades A, B and C.
7、1) These will form the subject of a future International Standard. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 22:05:04 MDTNo reproduction or networking permitted without l
8、icense from IHS -,-,- IS0 7417-1994 (E) 3 Dimensions Table 1 - General dimensions Alternative form permissible Dimensions in millimetres Thread size, d Ml0 Ml2 (Ml4111 Ml6 P2) 1.5 1,75 2 2 I c max.1 min. 10 12 14 16 47 max. 10.8 13 15.1 17.3 dw min. 14,6 16.6 19.6 22,5 e min. 17.77 20.03 23.35 26.75
9、 max. 93 12 14,1 16.4 m min. 8,94 11.57 13,4 15,7 m min. 7,15 9,26 IO,7 12.6 max. 16 18 21 24 s min. 15.73 17.73 20,67 23.67 1) The thread size in brackets should be avoided if possible. 2) P = pitch of the thread. 4 Specifications and reference standards Table 2 - Specifications and reference stand
10、ards Material Thread Tolerance International Standard Steel 6AXl) (See also the annex) IS0 261 Mechanical properties Class 92) International Standard IS0 89812 r I Tolerances Product grade A International Standard IS0 4759/l I Surface finish Type 1 Hot-dip galvanized International Standard 1 IS0 146
11、1 1 Acceptability I For acceptance procedure, see IS0 3269. I 1) The nuts are oversize tapped. The thread tolerances for oversize tapped hot-dip galvanized nuts to IS0 1461 have been temporarily designated 6AX and the thread limits are included in the annex on a provisional basis, pending the adopti
12、on of this thread class, when it is anticipated it will be included in IS0 965. 2) For proof load values, see clause 5. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 22:05:04
13、 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 7417-1964 (E) 5 Proof load stress - Tolerance class 6AX Table 3 - Proof load stress - Tolerance class 6AX Pitch of thread P NOTES 1 All other mechanical property requirements as IS0 888/2. 2 For methods of test, see IS0 8
14、!38/2. 3 Based on a proof stress of 775 N/mm2 for Ml0 800 N/mm2 for Ml2 810 N/mmzfor Ml4 and M16. 6 Designation Example for the designation of an oversize tapped hot-dip galvanized hexagon nut, style 2, of thread size d = Ml2 and property class 9 : 7 Marking 7.1 Product Nuts shall be marked in accor
15、dance with the requirements of IS0 898/2. Hexagon nut IS0 7417 - Ml2 - 9 7.2 Packaging The containers of oversize tapped hot-dip galvanized hexagon nuts, style 2, shall also be marked: Hot-dip galvanized nuts, style 2, oversize tapped to IS0 7417. 3 Copyright International Organization for Standardi
16、zation Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 22:05:04 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 7417-1994 (E) Annex Thread dimensions for hot-dip galvanized nuts tolerance class 6AX This an
17、nex gives information on screw thread limits for hot-dip galvanized nuts with a thread class 6AX. The limits given in table 4 apply after the hot-dip galvanized coating has been applied. Thread size d Ml0 Ml2 (Ml41 Ml6 Table 4 - Screw thread limits for tolerance 6AX Major diameter Pitch diameter max
18、. min. max. min. 10,639 10,456 9,556 9,376 12,676 12,476 11,413 11,213 14,706 14.494 13,263 13,051 16,756 16,544 15,313 15,101 Dimensions in millimetres Minor diameter max. min. 9,026 8,726 10,791 10,455 12,560 12,185 14,610 14,235 NOTES 1 Nuts are tapped oversize to the above dimensions after galva
19、nizing. 2 Based on an allowance of: 350 flrn for MlO, Ml2 and M14; 400 urn for M16. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 22:05:04 MDTNo reproduction or networking permitted without license from IHS -,-,-