1、 7046-22013 c Z. . 2. 8.8, ISO 7046-2:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws (IDT) 2014 7046-2:2013 II 1 - () - ( -) , 4 2 229 3 8 2013 .
2、1454- 4 ISO 7046-2:2011 Z. . 2. 8.8, (ISO 7046-2:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws). , . 5 1.02012 ( 8). ( 1 ) , . () . , (gost.ru) ,
3、 2014 , 7046-2-2013 1 Z 2. 8.8, Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws 20150101 1 , 2 10 , 8.8 , 2-70 , CU2 CU3 . - , , , , 261, 888, 898-1. 96
4、5-2, 3506-1, 4759-1 8839. 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 of fasteners made of carbon steel and a
5、lloy 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 screw threads Medium quality) 3269 . (I
6、SO 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 screws) 4759-1 . . 1. , , . , (ISO 475
7、9-1, 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) 6157-3 . . 3. , (ISO 6157-3, Fasteners Surface discontinuities Part 3: Bolts, screws
8、 and studs for special requirements) 7046-2-2013 2 7721-2 . 2. (ISO 7721-2 Countersunk flat head screws Part 2: Penetration depth of cross recesses) 8839 . , , (ISO 8839, Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals) 10683 . - (ISO 10683, Fasteners Non-
9、electrolytically applied zinc flake coatings) 16048 - (ISO 16048, Passivation of corrosion-resistant stainless-steel fasteners) , 1 , , , . , , (). , , , , , . , , , , . 3 1,2,3 1. 225. . = 2,5 . 2 3 1 1 () max= 2 1 ; 2 ( ) 2 2 () 7046-2-2013 3) b) Z 3 1 , d 2 2,5 3 (3,5) 4 5 6 8 10 Pb0,4 0,45 0,5 0
10、,6 0,7 0,8 1 1,25 1,5 b 25 25 25 38 38 38 38 38 38 . 4,4 5,5 6,3 8,2 9,4 10,4 12,6 17,3 20 3,8 4,7 5,5 7,3 8,4 9,3 11,3 15,8 18,3 dkc. 3,5 4,4 5,2 6,9 8,0 8,9 10,9 15,4 17,8 k 1,2 1,5 1,65 2,35 2,7 2,7 3,3 4,65 5 r 0,5 0,6 0,8 0,9 1 1,3 1,5 2 2,5 1 1,1 1,25 1,5 1,75 2 2,5 3,2 3,8 0 1 2 3 4 m 1,9 2,9
11、 3,2 4,4 4,6 5,2 6,8 8,9 10 0,9 1,4 1,7 1,9 2,1 2,7 3,0 4,0 5,1 1,2 1,8 2,1 2,4 2,6 3,2 3,5 4,6 5,7 0 1 2 3 4 m 1,9 2,8 3 4,1 4,4 4,9 6,6 8,8 9,8 0,95 1,48 1,76 1,75 2,06 2,60 3,00 4,15 5,19 . 1d () Z 1,20 1,73 2,01 2,20 2,51 3,05 3,45 4,60 5,64 0 1 2 3 4 m 1,9 2,7 2,9 4,1 4,6 4,8 6,6 8,7 9,6 0,9 1,
12、25 1,4 1,6 2,1 2,3 2,8 3,9 4,8 1,2 1,55 1,8 2,1 2,6 2,8 3,3 4,4 5,3 0 1 2 3 4 m 1,9 2,5 2,8 4 4,4 4,6 6,3 8,5 9,4 0,95 1,22 1,48 1,61 2,06 2,27 2,73 3,87 4,78 . 2d () Z 1,20 1,47 1,73 2,05 2,51 2,72 3,18 4,32 5,23 7046-2-2013 4 1 , d 2 2,5 3 (3,5) 4 5 6 8 1l ae . 3 2,8 3,2 4 3,76 4,24 5 4,76 5,24 6
13、5,76 6,24 8 7,71 8,29 10 9,71 10,29 12 11,65 12,35 (14) 13,65 14,35 16 15,65 16,35 20 19,58 20,42 25 24,58 25,42 30 29,58 30,42 35 34,5 35,5 40 39,5 40,5 45 44,5 45,5 50 49,5 50,5 (55) 54,05 55,95 60 59,05 60,95 a , , . b . . 7721. d 7721-2. e , , ; b=l (k+a). 7046-2-2013 54 2. 2 - 6g 261, 965-2 8.8
14、 2-70 CU2, CU3a 898-1 3506-1 8839 4759-1 4757 4042 - 10683 16048 4042 6157-1 6157-3 3269 . 5 1 5, l = 20 , 8.8 Z, 1 2 : 7046-2 5 20 8.8 Z. 2 , : 7046-2 5 20 8.8 Z1. 7046-2-2013 6 () ( ) 1 225 * 261 MOD 87242002 ( 261-98) . . 898-1 IDT 898-12011 . 1. , 965-2 * 3269 IDT 32692009 . 3506-1 IDT 3506-1200
15、9 - . 1. , 4042 IDT 40422009 . 4757 NEQ 1075386 . 4759-1 IDT 4759-12009 . . 1. , , . , 6157-1 IDT 6157-12009 . . 1. , 6157-3 *1 7721-2 IDT 7721-22011 . 2. 8839 IDT 88392009 . , , 10683 IDT 106832013 . - 16048 *2* . . . : - MOD ; - IDT ; - NEQ . 1 ISO 6157-3(ISO 6157-3:1988, IDT). 2 ISO 16048(ISO 16048:2003, IDT). 7046-2-2013 7 1 ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts 2 ISO 7721, Countersunk head screws Head configuration and g
