1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO 7411 6 (ISO 888 ) C 8.8 10.9 KS B ISO 7411:2008 2008 12 11 http:/www.kats.go.krKS B ISO 7411:2008 : ( ) ( ) () () () ( ) : (http:/www.standard.go.kr) ： ： 2003 12 15 ： 2008 12 11 2008-0871 ： ： ( 025097274) (http:/www.kats.go.kr). 10 5 , . KS B ISO 74
2、11:2008 6 (ISO 888 ) C 8.8 10.9 Hexagon bolts for high-strength structural bolting with large width across flats(thread lengths according to ISO 888) Product grade C Property classes 8.8 and 10.9 1984 1 ISO 7411, Hexagon bolts for high-strength structural bolting with large width across flats(thread
3、 lengths according to ISO 888) Product grade C Property classes 8.8 and 10.9 . 1 8.8 10.9 ISO 888 , M12 M36 6 ( , 6 .) . ISO 261, ISO 888, ISO 898 ISO 965 . (ISO 4775 ) (stripping) . 8.8S U1) 10.9S U1) . 8.8S U 10.9S U ISO 4775 6H . . 2 . . ( ) . 1) 7. . KS B ISO 7411:2008 2 KS B ISO 898 1, 1： , KS
4、B ISO 898 2, 2： KS B ISO 3269, KS B ISO 7415, KS B ISO 7416, KS D ISO 1461, ISO 261, ISO general purpose metric screw threads General plan ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts ISO 898 5： 1998, Mechanical properties of fasteners made of carbon
5、 steel and alloy steel Part 5： Set screws and similar threaded fasteners not nuder tensile stresses ISO 898 6： 1994, Mechanical properties of fasteners Part 6： Nuts with specified proof load valuesFine pitch thread ISO 898 7： 1992, Mechanical properties of fasteners Part 7： Torsional test and minimu
6、m torques for bolts and screws with nominal diameters 1 mm to 10 mm ISO 965 1： 1998, ISO general purpose metric screw threads Tolerances Part 1： Principles and basic data ISO 965 2： 1998, ISO general purpose metric screw threads Tolerances Part 2： Limits of sizes for general purpose external and int
7、ernal screw threads Medium quality ISO 965 3： 1998, ISO general purpose metric screw threads Tolerances Part 3： Deviations for constructional screw threads ISO 965 4： 1998, ISO general purpose metric screw threads Tolerances Part 4： Limits of sizes for hot-dip galvanized external screw threads to ma
8、te with internal screw threads tapped with tolerance position H or G after galvanizing ISO 965 5： 1998, ISO general purpose metric screw threads Tolerances Part 5： Limits of sizes for internal screw threads to mate with hot dip galvanized external screw threads with maximum size of tolerance positio
9、n H before galvanizing ISO 4753, Fasteners Ends of parts with external ISO metric thread ISO 4759 1, Tolerances for fasteners Part 1： Bolts, screws, studs and nuts Product grades A, B and C ISO 4775, Hexagon nuts for high-strength structural bolting with large width across flats Product grade B Prop
10、erty classes 8 and 10 3 KS B ISO 7411:2008 3 d M20 a u2P 1 1 a： mm , d M12bM16 M20 (M22)cM24 (M27)cM30 M36 P d1.75 2 2.5 2.5 3 3 3.5 4 e30 38 46 50 54 60 66 78 f 44 52 56 60 66 72 84 bref g 65 69 73 79 85 97 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 c 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 da 14.7 18.7 23.24 25.24 2
11、7.64 31.24 34.24 41.00 12.70 16.70 20.84 22.84 24.84 27.84 30.84 37.00 ds 11.30 15.30 19.16 21.16 23.16 26.16 29.16 35.00 hhhhhhhhdw 19.2 24.9 31.4 33.3 38.0 42.8 46.5 55.9 e 22.78 29.56 37.29 39.55 45.20 50.85 55.37 66.44 7.5 10 12.5 14 15 17 18.7 22.5 7.95 10.75 13.40 14.90 15.90 17.90 19.75 23.55
12、 k 7.05 9.25 11.60 13.10 14.10 16.10 17.65 21.45 k 4.9 6.5 8.1 9.2 9.9 11.3 12.4 15.0 r 0.6 0.6 0.8 0.8 1.0 1.2 1.2 1.5 15 30 aa lg max ls min 1.5 P . 15 30 KS B ISO 7411:2008 4 1 a( ) ： mm , d M12bM16 M20 (M22)cM24 (M27)cM30 M36 21 27 34 36 41 46 50 60 s 20.16 26.16 33 35 40 45 49 58.8 ls lgi, jl l
13、slg ls lglslglslglslglslg ls lg lslg30 28.95 31.05 35 33.75 36.25 6 11.25 40 38.75 41.25 6 11.25 8 14 45 43.75 46.25 7.1 15 8 14 10 17.5 50 48.75 51.25 12.1 20 8 14 10 17.51118.5 55 53.5 56.5 17.1 25 8 17 10 17.51118.512 21 60 58.5 61.5 22.1 30 13 22 10 17.5 11 18.5 12 21 13.5 22.5 65 63.5 66.5 27.1
14、 35 18 27 10 17.5 11 18.5 12 21 13.5 22.5 70 68.5 71.5 32.1 40 23 32 12.7 24 11 18.5 12 21 13.5 22.5 15 25.5 75 73.5 76.5 37.1 45 28 37 17.7 29 13.7 25 12 21 13.5 22.5 15 25.5 80 78.5 81.5 42.1 50 33 42 22.7 34 18.7 30 12.5 26 13.5 22.5 15 25.5 85 83.25 86.75 47.1 55 38 47 27.7 39 23.7 35 17.5 31 13
15、.5 22.5 15 25.5 18 3090 88.25 91.75 52.1 60 43 52 32.7 44 28.7 40 22.5 36 16.5 30 15 25.5 18 3095 93.25 96.75 57.1 65 48 57 37.7 49 33.7 45 27.5 41 21.5 35 15 25.5 18 30100 98.25 101.75 62.1 70 53 62 42.7 54 38.7 50 32.5 46 26.5 40 18.2 34 18 30110 108.25 111.75 63 72 52.7 64 48.7 60 42.5 56 36.5 50
16、 28.2 44 18 30120 118.25 121.75 73 82 62.7 74 58.7 70 52.5 66 46.5 60 38.2 54 24 42130 128 132 77 86 66.7 78 62.7 74 56.5 70 50.5 64 42.2 58 28 46140 138 142 87 96 76.7 88 72.7 84 66.5 80 60.5 74 52.2 68 38 56150 148 152 97 106 86.7 98 82.7 94 76.5 90 70.5 84 62.2 78 48 66160 156 164 86.5 100 80.5 9
17、4 72.2 88 58 76170 166 174 96.5 110 90.5 104 82.2 98 68 86180 176 184 106.5 120 100.5 114 92.2 108 78 96190 186 194 116.5 130 110.5 124 102.2 118 88 106200 196 204 126.5 140 120.5 134 112.2 128 98 116a . b . c 2 . dP e lnom100 mm f 100 mm lnom200 mm g lnom 200 mm hdw max sactual ilg max lnom bref, l
18、s min lg max 3 P jls min i 0.5 d 0.5 d . . lg max ls min 3 P . . KS B ISO 7411:2008 5 4 2 6 ga ISO 261, ISO 965 8.8 10.9 KS B ISO 898 1 (black oxide)b d e d e cKS D ISO 1461 KS D ISO 1461 f C ： c, dw min(0.95 smin) r 180 mm , ： 4.0 mm ISO 4759 1 KS B ISO 3269 ISO 4775 KS B ISO 7415 KS B ISO 7416 a .
19、 , 6az . 8.8S U 10.9S U (6. 7. ). 6az A . b . c . d . e . f . 5 . B . 6 d M16, l 80 mm, 8.8 ISO 888 . 6 KS B ISO 7411 M1680 8.8 KS B ISO 7411:2008 6 1 . 2 “U” (7. ). 7 . a) 1) ISO 898 1 2) S 3) U . 8.8S 10.9S 8.8S U 10.9S U b) . , KS B ISO 7411:2008 7 A ( ) 6az 6az . A.1 . , h . az . esaz (300 20 P)
20、 A.1 6az ： mm d a M 12 M 16 M 20 (M 22) M 24 (M 27) M 30 M 36 6 8 10 10 12 12 15 18 18 24 30 30 36 36 45 53 11.66515.66019.65021.65023.64026.64029.63035.62011.40015.38019.31521.31523.26526.26529.20535.14510.52814.36118.02620.02621.69124.69127.35733.02210.37814.20117.85619.85621.49124.49127.14532.798
21、9.771 13.495 16.944 18.944 20.392 23.392 25.841 31.290 0.175 0.200 0.250 0.250 0.300 0.300 0.350 0.400 a KS B ISO 7411:2008 8 B ( ) . a) 5. . . . . b) ( ) 6 . 1 2 mm . c) 10 % . , . B.1 . . B.1 ( ) ( ) l2d 2d l3d 3d l4d 4d l8d l 8d 180 240 300 360 420 6 (ISO 888 ) C 8.8 10.9 135513 7017 (02)60094114
22、 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS B ISO 7411:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Hexagon bolts for high-strength structural bolting with large width across flats(thread lengths according to ISO 888) Product grade C Property classes 8.8 and 10.9 ICS 21.060.10
