1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO 12126 6 ( ) A B KS B ISO 12126： 2008 2008 1 15 http:/www.kats.go.krKS B ISO 12126： 2008 ： () ( ) () () () () ( ) : (http:/www.standard.go.kr) ： ：2008 1 15 20080004 ： ： ( 025097274) (http:/www.kats.go.kr). 10 5 , . KS B ISO 12126： 2008 6 ( ) A B Prev
2、ailing torque type all-metal hexagon nuts with flange with metric fine pitch thread Product grades A and B 1997 1 ISO 12126, Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread Product grades A and B , . 1 6, 8 10 M16 A M16 B M8 M20 6 ( ) . ISO 261, ISO 965 2, KS
3、B ISO 2320 ISO 4759 1 . 2 . . ( ) . KS B ISO 2320, KS B ISO 3269, KS B ISO 8992, , , ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and designations of dimensions ISO 261, ISO general purpose metric screw threads General plan ISO 965 2, ISO general purpose metric screw threads Tolerances P
4、art 2： Limits of sizes for general purpose bolt and nut threads Medium quality ISO 4042, Fasteners Electroplated coatings ISO 4759 1, Tolerances for fasteners Part 1： Bolts, screws, studs and nuts Product grades A, B and C ISO 6157 2, Fasteners Surface discontinuities Part 2： Nuts 3 1 1 , ISO 225 .
5、KS B ISO 12126： 2008 2 1) 2) mw： ( 1 ) 3) 90 120 4) 15 25 5) c： dw, min 6) ( ) 1 KS B ISO 12126： 2008 3 1 ： mm (dP)aM81 M101 M101.25M121.5 M121.25(M141.5)bM161.5 M201.5 c 1.2 1.5 1.8 2.1 2.4 3 8.75 10.8 13 15.1 17.3 21.6 da 8.00 10.0 12 14.0 16.0 20.0 dc 17.9 21.8 26 29.9 34.5 42.8 dw 15.8 19.6 23.8
6、 27.6 31.9 39.9 e 14.38 16.64 20.03 23.36 26 32.95 9.40 11.40 13.80 15.9 18.3 22.4 h 8.74 10.34 12.57 14.8 17.2 20.3 m 7.64 9.64 11.57 13.3 15.3 18.7 mw 4.6 5.6 6.8 7.7 8.9 10.7 13.00 15.00 18.00 21.00 24.00 30.00 s 12.73 14.73 17.73 20.67 23.67 29.16 r c 0.48 0.6 0.72 0.88 0.96 1.2 A , e, c, mw . a
7、P b . c r 6 . 4 2 . KS B ISO 12126： 2008 4 2 KS B ISO 8992 6H ISO 261, ISO 965 2 6 8 10 a 1 d16 mm 2 d 16 mm 1 2 KS B ISO 2320 A d16 mm, B d 16 mm ISO 4759 1 ISO 4042 . . ISO 6157 2 . KS B ISO 3269 . aKS B ISO 2320 ( hmin) 2 . KS B ISO 2320 , 2 1 . 5 8 M121.5, 6 . 6 KS B ISO 12126 M121.5 8 KS B ISO
8、12126： 2008 5 A ( ) 6 A.1 6 ( A.1 A.1 ) 6 6 , 6 , , 2 (A B) . A 6 . B . 2 . A.2 ( A.1 A.1 ) C (flat feeler) . C 6 . C A . Wa,min eWb,max emin 0.01 mm Ta,max mw,min1 A 2 B 3 C A.1 KS B ISO 12126： 2008 6 A.1 ： mm A B C WaTaWbTbWcTc d 8 15.02 15.01 4.60 4.59 14.37 14.36 4 20 1.31 1.30 10 17.33 17.32 5.
9、60 5.59 16.63 16.62 5 24 1.81 1.80 12 20.79 20.78 6.80 6.79 20.02 20.01 5 29 2.20 2.19 14 24.26 24.25 7.70 7.69 23.35 23.34 6 32.5 2.55 2.54 16 27.72 27.71 8.90 8.89 26.74 26.73 6 37 2.96 2.95 20 34.65 34.64 10.70 10.69 32.94 32.93 6 45 3.70 3.69 6 ( ) A B 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS B ISO 12126： 2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread Product grades A and B ICS 21.060.20
