This standard specifies the type and size of the hexagonal flower head fastening screw for countersunk indexable inserts. This standard applies to fastening screws for countersunk indexable inserts with thread codes of M2 to M8. JB/T 8363.1-1996 Type and size of the hexagonal flower head fastening screw for countersunk indexable inserts JB/T8363.1-1996 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 8363. 1--96
Fastening screws for countersunk indexable inserts
Head hexagonal flower shape type and size
1996-04-22 Issued
Ministry of Machinery Industry of the People's Republic of China
1996-01-01 Implementation
JB.T8363.1
Appendix A and Appendix B of this standard are the appendixes of the standard. The international standard is proposed and coordinated by the National Standardization Technical Committee, and the responsible unit for this standard is the Ministry of Tools Research Institute. The main drafters of this standard are Yu Jin, Yao Ti Pan, and Liang Xue. This standard was issued for the first time on 22nd, 1996. This standard is effective from July 1, 1996. Standard of the People's Republic of China on the Machinery Industry. Types and dimensions of the hexagonal inner flower head of the fastening screw for countersunk indexable inserts. This standard specifies the type and dimensions of the hexagonal inner flower head of the fastening screw for countersunk indexable inserts. This standard is applicable to the fastening screws for countersunk indexable inserts with thread sizes of M2 to M8. 2. Special size. A. Convex arc width of the hexagonal inner flower. The hexagonal inner flower is the width of the opposite side; R. The radius of the hexagonal inner flower. The hexagonal inner flower is round or semi-circular:! Hexagonal flower depth
3 Type and size www.bzxz.net
3.1 The type and size of the hexagonal flower are shown in Figure 1 and Table 7. Figure 1
1996472 approved by the Ministry of Machinery Industry
JR/T 8363.196
Applicable rubber code:
19960701 implementation
JB/T 8363.1—96
Table 1 (end)
3.2 The type and size of the hexagonal flower screwdriver are shown in Appendix A (standard appendix). 4 Inspection method
Applicable frequency code
M4 and M4. 5
The shape and length of the hexagonal flower are modified based on the specified basis using the attached tool (standard appendix). If the measurement can be placed without obstruction and without too much dynamic force into the flower shape, and the detection range determined by the judgment 1 is reached, it is judged to be qualified. JB/T 8363.1-96
Appendix A
Type and size of the cross section of the hexagonal flower tool (standard appendix)
A1 The type and size of the hexagonal flower tool section are shown in Figure A1 and Table A1, Figure A1
The type of the female gauge is shown in Figure B1.
Engraved
JB/T 8363.1—96
Appendix B
(standard appendix)
The type of the gauge head is shown in Figure B2, and the size is shown in Table Bt. Figure B2
Total enlargement
foundation difficult
ground depth
JB/T8363.1-96
B3 standard simplified type connection when the size shown in 3 table 2M6
《reference）
(examination)
(Xu Zhuan)
JB/T 8363. 1-96
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