1、 7048 2013 c ISO 7048:2011 ross-recessed cheese head screws (IDT) 2014 7048:2013 II 1 - () - ( -) , 4 2 229 3 8 2013 . 1457- 4 7048:2011 (ISO 7048:2011 ross-recessed cheese head screws) , 5 1.02012 ( 8). ( 1 ) , . () . , (gost.ru) , 2014 , 7048-2013 1 c ross-recessed cheese head screws 20150101 1 ,
2、2,5 8 Z. 1207. - , , , , 261, 888, 898-1, 965-2, 3506-1 4759-1. 2 . . ( ). 225 . , , . (ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and designations of dimensions) 261 ISO . (ISO 261, ISO general purpose metric screw threads General plan) 898-1 . 1. , (ISO 898-1, Mechanical properties o
3、f fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread) 965-2 ISO . . 2. . (ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal s
4、crew threads Medium quality) 3269 . (ISO 3269, Fasteners Acceptance inspection) 3506-1 - . 1. , (ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs) 4042 . (ISO 4042, Fasteners Electroplated coatings) 4757 (ISO 4757, Cross recesses for
5、screws) 4759-1 . . 1. , , . , (ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C) 6157-1 . . 1. , (ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirements) 7048-2013 2 8839 . , , (ISO 8839, Mechanical p
6、roperties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals) 8992 . , , (ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts) 10683 . - (ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings) , 1 , , , . , , (). , , , , , . , , , , . 3 1 1.
7、. 225 ) b) Z . b . 1 7048-2013 3 1 , d 2,5 3 (3,5) 4 5 6 8 Pb0,45 0,5 0,6 0,7 0,8 1 1,25 0,9 1 1,2 1,4 1,6 2 2,5 b 25 25 38 38 38 38 38 4,50 5,50 6,00 7,00 8,50 10,00 13,00 dk 4,32 5,32 5,82 6,78 8,28 9,78 12,73 da 3,1 3,6 4,1 4,7 5,7 6,8 9,2 1,80 2,00 2,40 2,60 3,30 3,9 5,0 k 1,66 1,86 2,26 2,46 3,
8、12 3,6 4,7 r 0,1 0,1 0,1 0,2 0,2 0,25 0,4 1,1 1,25 1,5 1,75 2 2,5 3,2 1 2 2 2 2 3 3 m . 2,7 3,5 3,8 4,1 4,8 6,2 7,7 1,20 0,86 1,15 1,45 2,14 2,25 3,73 H 1,62 1,43 1,73 2,03 2,73 2,86 4,36 m . 2,4 3,5 3,7 4,0 4,6 6,1 7,5 1,10 1,22 1,34 1,60 2,26 2,46 3,88 . Z 1,35 1,47 1,80 2,06 2,72 2,92 4,34 l . ,
9、1000 ( = 7,85 /3) ( ) 2 1,8 2,2 3 2,8 3,2 0,272 4 3,76 4,24 0,302 0,515 5 4,76 5,24 0,332 0,560 0,786 1,09 6 5,76 6,24 0,362 0,604 0,845 1,17 2,06 8 7,71 8,29 0,422 0,692 0,966 1,33 2,20 3,56 10 9,71 10,29 0,482 0,780 1,08 1,47 2,55 3,92 7,85 12 11,65 12,35 0,542 0,868 1,20 1,63 2,80 4,27 8,49 16 15
10、,65 16,35 0,662 1,04 1,44 1,95 3,30 4,98 9,77 20 19,58 20,42 0,782 1,22 1,68 2,25 3,78 5,69 11,0 25 24,58 25,42 0,932 1,44 1,98 2,64 4,40 6,56 12,6 30 29,58 30,42 1,66 2,28 3,02 5,02 7,45 14,2 35 34,5 35,5 2,57 3,41 5,62 8,25 15,8 40 39,5 40,5 3,80 6,25 9,20 17,4 45 44,5 45,5 6,88 10,0 18,9 50 49,5
11、50,5 7,50 10,9 20,6 60 59,05 60,95 12,7 23,7 70 69,05 70,95 26,8 80 79,05 80,95 29,8 , , , . a , , . b . , , ; (b=l a). 7048-2013 4 4 2. 2 - 8992 6g 261, 965-2 4.8, 5.8 2-70 898-1 3506-1 8839 4759-1 4757 4042 - 10683 4042 . 6157-1 3269 , . 5 5, l = 20 , 4.8 Z : 7048 5 20 4.8 Z. 7048-2013 5 () ( ) 1
12、225 * 261 MOD 87242002 ( 261-98) . . 898-1 IDT 898-12011 . 1. , 965-2 * 3269 IDT 32692009 . 3506-1 IDT 3506-12009 - . 1. . 4042 IDT 40422009 . 4757 NEQ 1075386 . 4759-1 IDT 4759-12009 . . 1. , , . , 6157-1 IDT 6157-12009 . . 1. , 8839 IDT 88392009 . , , 8992 IDT 89922011 . , , 10683 IDT 106832013 .
13、- * . . . : - MOD ; - IDT ; - NEQ . 1 ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts 2 ISO 1207, Slotted cheese head screws Product grade A 621.882.215.3:006.354 21.060.10 16 5000 : , , , 01.04.2014. 60x841/8. . . . 0,93. 31 . . 1354. , 123995 , ., 4. www.gostinfo.ru infogostinfo.ru
