[CS25.080.01 Machinery Industry Standard of the People's Republic of ChinaWww.bzxZ.net JB/T 3411.1-3411.16—1999 Accessories ofgeneral purpose parallel lathes1999-05-20 Issued National Machinery Industry Bureau Implementation on 2000-01-01 Machinery Industry Standard of the People's Republic of China 90° Square bolter for internal turning, dimensions Squarel bolter for 90° internal turning-Dimengioa This standard specifies the type and dimensions of internal turning bolts. 2 Type and size Type and size are as specified in the following figure and table. De32m1 Limit deviation JBT3411.6—1999 B3416—83 125t60|20060;200|230;200|250|31320|313400|2031400 31400500|400,500|633;500|630|80080 Note: 2, square hole root policy can be made or need to be shaped, mark mark example: H-16mm, L-160mm car inner square rod: knife rod 16×160/34161999 National Machinery Industry Bureau 1999-05-20 approved 8 2000-01-implemented Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.