1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO 12125 6 ( ) A B KS B ISO 12125： 2008 2008 1 15 http:/www.kats.go.krKS B ISO 12125： 2008 ： () ( ) () () () () ( ) : (http:/www.standard.go.kr) ： ：2008 1 15 20080004 ： ： ( 025097274) (http:/www.kats.go.kr). 10 5 , . KS B ISO 12125： 2008 6 ( ) A B Pre
2、vailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread Product grades A and B 1997 1 ISO 12125, Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread Product grades A and B , . 1 6, 8 10 M16 A M16 B M8
3、M20 6 ( ) . ISO 261, ISO 965 2, KS 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 purpos
4、e metric screw threads Tolerances Part 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 discontinuit
5、ies Part 2： Nuts 3 KS B ISO 12125： 2008 2 1 1 , ISO 225 . 1) 2) mw： ( 1 ) 3) 90 120 4) 15 25 5) c： dw, min 6) ( ) 1 KS B ISO 12125： 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
6、 26 29.9 34.5 42.8 dw 15.8 19.6 23.8 27.6 31.9 39.9 e 14.38 16.64 20.03 23.36 26.75 32.95 11.1 13.5 16.1 18.2 20.3 24.8 h 10.4 12.8 15.4 16.9 19.0 22.7 mc 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 d 0.48 0.6
7、 0.72 0.88 0.96 1.2 A , e, c, mw . aP b , . c d r 6 . 4 2 . KS B ISO 12125： 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 ( mmin) 2 . KS B ISO 2320 , 2 1 . 5 8 M121.5,
8、 6 ( ) . 6 KS B ISO 12125 M121.5 8 KS B ISO 12125： 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 12125： 2008 6 A.1 ： mm A B C WaTaWbTbWcTc d 8 15.02 15.01 4.60 4.59
9、14.37 14.36 4 20 1.31 1.30 10 17.33 17.32 5.60 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 7.79 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
10、 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS B ISO 12125： 2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread Product grades A and B ICS 21.060.20
