This standard specifies the dimensions, technical requirements, markings and logos of cross slot precision punching dies for manufacturing fasteners such as screws, self-tapping screws and wood screws. This standard applies to cross slot precision punching dies for full-die automatic cold heading machines. JB/T 7383-1994 Fastener cross slot precision punching dies JB/T7383-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7383-94
Cross slot fine punching die for fasteners
Published on July 26, 1994
Ministry of Machinery Industry of the People's Republic of China
Implemented on July 1, 1995
Mechanical Industry Standard of the People's Republic of China
Cross slot fine punching die for fasteners
1 Subject content and scope of application
JB/T 738394
This standard specifies the dimensions, technical requirements, markings and signs of cross slot fine punching dies for manufacturing fasteners such as screws, self-tapping screws and wood screws.
This standard applies to cross slot fine punching dies for full-die automatic cold heading machines. 2 Reference standards
GB 845
GB6560
GB6561
GB6562
GB9456
Cross recessed pan head screw
Cross recessed countersunk head screw
Cross recessed semi-countersunk head screw
Cross recessed cylindrical head screw
Cross recessed small pan head screw
Cross recessed pan head tapping screw
Cross recessed countersunk head tapping screw
Cross recessed semi-countersunk head tapping screw||tt| |Cross slot for screws
Cross slot ring head wood screws
Cross slot countersunk head wood screws
Cross slot semi-countersunk head wood screws
Cross slot pan head tapping screws
Cross slot countersunk head tapping screws
Cross slot semi-countersunk head tapping screws
Cross barrel recessed hexagon head tapping screws
Outline dimensions and applicable scope of fine punching dies
Outline dimensions and applicable scope of punching dies· Shall comply with the requirements of Figure 1 and Table 1. b
Approved by the Ministry of Machinery Industry on July 26, 1994
Implemented on July 1, 1995
Precision punching die
GB9456
GB6560
GB6561
GB6562
12-8:85
4 Types and dimensions of cross slots and heads
14 :05
JB/T738394
23 8:89
M5、M6
M5、M6
M5、M6
M8、M10
ST8、
258:89
The type and size of the cross slot and head of the fine stamping die should ensure that the type and size of the cross slot and head on the product meet the requirements of GB944.1 and the corresponding product standards.
Material, heat treatment and surface treatment
The material, heat treatment, surface treatment and surface processing requirements of the fine stamping die shall be determined by the manufacturer. 6 Marking
The marking content and order of the fine stamping die are as follows:
Name: cross slot fine stamping die.
JB/T738394
Type of cross groovewwW.bzxz.Net
Specification of product
Standard number of product
Standard number
Standard number of product: that is, the number of the product standard such as cross groove screws, in which "GB" and the year number should be omitted.6.2
6.3 Specification of product: only mark the thread diameter specification, in which the decimal point and the \ST\ of the thread for self-tapping screws must be omitted.6.4 Type of cross groove: according to the provisions of cross groove standards such as GB944.1, but \H\ type can be omitted.6.5 Marking example
GB818 cross groove Pan head screw, M6.H type; Fine punching die: Marking of cross slot fine punching die with outer diameter D=23mm and length L=25mm:
Cross slot fine punching die JB/T7383818M6
7 Marking and packaging
7.1 The marking on the fine punching die shall meet the following requirements. 7.1.1 The fine punching die of the commodity must be marked. The marking position is determined by the manufacturer. 7.1.2 The content of the marking is:
The standard number of the product ("GB\ and the year number should be omitted), the specification of the product (the decimal point and the \ST\ of the thread for self-tapping screws must be omitted) and the type of cross slot (H type can be omitted). The manufacturer's trademark or other identification symbol. 7.1.3 Marking example
GB818 Cross slot pan head screw, M6, H type fine punching die marking: ××
The manufacturer's trademark or other identification symbol. 7.2 The requirements for packaging, transportation and storage shall be determined by the manufacturer in accordance with relevant standards. Additional remarks:
This standard is proposed by the National Technical Committee for Fastener Standardization. This standard is under the jurisdiction of the Mechanical Standardization Research Institute of the Ministry of Machinery Industry. This standard is drafted by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry.
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