GOST R ISO 7721-2011 Countersunk head screws Head configuration and gauging《沉头螺钉 端头的构型和量规》.pdf

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1、 77212011 ISO 7721:1983Countersunk head screws Head confi guration and gauging(IDT) 77212011II 27 2002 . 184- , 1.02004 . 1 - ( ) -, 42 229 3 - 13 2011 . 1016-c4 7721:1983 . (ISO 7721:1983 Countersunk head screws Head confi guration and gauging)5 - , - . () . - , , 2012 , - - 77212011 III1 . . . . .

2、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 . . . . . . . . . . . . . . . . . . . . .

3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 () . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 201301011 , , .2 * . 1 1 d-M1,6 M2 M2,5 M3 M3,5 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20-ST 2,2ST 2,9ST 3,

4、5ST 4,2ST 4,8ST 5,5ST 6,3ST 8ST 9,5dk- 3,6 4,4 5,5 6,3 8,2 9,4 10,4 11,5 12,6 17,3 20 24 28 32 36 40 3,3 4,1 5,1 5,9 7,7 8,9 9,8 10,9 11,9 16,5 19,2 23,1 27 30,8 34,7 38,5- 3 3,8 4,7 5,5 7,3 8,4 9,3 10,3 11,3 15,8 18,3 22 25,5 29 32,5 36 2,7 3,5 4,4 5,2 6,9 8 8,9 9,9 10,9 15,4 17,8 21,5 25 28,5 31,9

5、 35,4F, 0,15 0,15 0,2 0,2 0,25 0,25 0,3 0,3 0,35 0,4 0,4 0,45 0,5 0,6 0,65 0,75k, -1 1,2 1,5 1,65 2,35 2,7 2,7 3,3 4,65 5678910- 1,1 1,7 2,35 2,6 2,8 3 3,15 4,65 5,25 77212011 Countersunk head screws. Head confi guration and gauging 7721201123 2, 3 2. . dk 2 3 2 d M1,6 M2 M2,5 M3 M3,5 M4 M5 M6 M8 M1

6、0- ST2,2 ST2,9 ST3,5 ST4,2 ST4,8 ST5,5 ST6,3 ST8 ST9,5D 3,6 4,4 5,5 6,3 8,2 9,4 10,4 11,5 12,6 17,3 20 3,55 4,35 5,45 6,25 8,15 9,35 10,35 11,45 12,55 17,25 19,95da 1,84 2,36 2,74 3,3 3,9 4,4 5,5 5,68 6,6 8,54 10,62 1,74 2,26 2,64 3,2 3,8 4,3 5,4 5,58 6,5 8,44 10,52F 0,15 0,15 0,2 0,2 0,25 0,25 0,3

7、0,3 0,35 0,4 0,4 0,14 0,14 0,19 0,19 0,24 0,24 0,29 0,29 0,34 0,39 0,39dh 2,68 3,48 4,38 5,18 6,88 7,98 8,88 9,88 10,88 15,38 17,78 2,7 3,5 4,4 5,2 6,9 8 8,9 9,9 10,9 15,4 17,8 da, min R, 0,25 d - 0,4 d . 77212011 3 () F .( ) .1 1 C , .1. .1d M 1,6 M 2 M 2,5 M 3 3,5 4 M 5 M 6 M 8 M 10- ST 2,2 ST2,9

8、ST3,5 ST4,2 ST4,8 ST5,5 ST6,3 ST8 C, , 0,2 0,22 0,28 0,3 0,32 0,35 0,38 0,4 0,42 0,5 0,632 .1:s = p r, p = LM = (F + C) sec 45;r = LM tg 2230 = (F + C) sec 45 tg 2230;s = (F + C) sec 45 (F + C) sec 45 tg 2230;s = (F + C) (sec 45)(1 tg 2230) 0,83 (F + C);dk. min dk . min (dk .max dk .max), dk .min= dk .max 2 F. 772120114 621.88.091.6:006.354 21.060.10 33 16 5000 : , , , . . . . 09.11.2012. 07.12.2012. 60841/8. . . . 0,93. .-. . 0,40. 120 . . 1082. , 123995 , ., 4.www.gostinfo.ru infogostinfo.ru . . , 105062 , ., 6.

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