1、 7721-22011 2 ISO 7721-2:1990 Countersunk fl at head screws Part 2: Penetration depth of cross recesses(IDT) 7721-22011II 27 2002 . 184- , 1.02004 . 1 - ( ) -, 42 229 3 - 13 2011 . 1019-4 7721-2:1990 - . 2. (ISO 7721-2:1990 Countersunk fl at head screws Part 2: Penetration depth of cross recesses).
2、- - , 5 - , - . () . - , , 2012 , - - 7721-22011 III1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、. . . . . . . . . .13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 () . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 () . . . . . . . . . .
4、. . . . . . . . . . . . . . . . . . .3 7721-22011IV - , .-, - . . , . , , -, . - , , . - 7046-1 (. ). . - , - , - . , , - , .1 201301011 1 () 2 ().2 , . , . , , , . 225:2010 . , , . - (ISO 225:1983, Fasteners Bolts, screws, studs and nuts Symbols and designations of dimensions) 4757:1983 (ISO 4757:1
5、983, Cross recesses for screws) 7721:1983 . (ISO 7721:1983, Countersunk head screws Head confi guration and gauging)3 , 1, - , (. - 1 2). , 7721. 1 225. 1 2 7721-22011 2 Countersunk fl at head screws. Part 2. Penetration depth of cross recesses 7721-2201121 d1)1 ()2 ().2)mZ.2)m.2)mZ.2)m-1,600,60,91,
6、60,700,951,6200,91,21,90,951,201,90,91,21,90,951,201,9ST2,200,91,21,90,951,2022,511,41,82,91,481,732,81,251,552,71,221,472,53ST2,911,72,13,21,762,0131,41,82,91,481,732,83,5ST3,521,92,44,41,752,204,11,62,14,11,612,0544ST4,222,12,64,62,062,514,42,12,64,62,062,514,45ST4,822,73,25,22,603,054,92,32,84,82
7、,272,724,6ST5,532,83,36,62,733,186,36ST6,333,03,56,83,003,456,62,83,36,62,733,186,38ST844,04,68,94,154,608,83,94,48,73,874,328,510ST9,545,15,7105,195,649,84,85,39,64,785,239,43), (), -4,88.8 9.8, -, 8.81) 4757. 2) 4757. 3), -. 7721-22011 3 ()1 ISO 7046-1:1994, Countersunk fl at head screws (common h
8、ead style) with type H or type Z cross recess Product grade A Part 1: Steel of property class 4.8.2 ISO 7046-2:1990, Cross recessed countersunk fl at head screws (common head style) Grade A Part 2: Steel of property class 8.8, stainless steel and non-ferrous metals. () .1 - 225:2010 * 4757:1983 NEQ 1075386 -. 7721:1983 IDT 77212011 . - * . . - . - :- NEQ ;- IDT . 7721-220114 621.882.215.6.091.6:006.354 21.060.10 33 16 5000 : , , , -, . . . . . 09.11.2012. 10.12.2012. 60841/8. . . . 0,93. .-. . 0,50. 120 . . 1091. , 123995 , ., 4.www.gostinfo.ru infogostinfo.ru . . , 105062 , ., 6.
