GB/T 9074.16-1988 Hexagon head bolt and external serrated lock washer assemblies

GB/T 9074.16-1988 Hexagon head bolt and serrated lock washer assembly GB/T9074.16-1988 Standard download decompression password: www.bzxz.net

1 Subject content
National Standard of the People's Republic of China
Hexago head bolt and serrated lockwasher external teeth assembliesUDC 621.8B2
GB9074.16—88
This standard specifies hexagon head bolt and serrated lockwasher external teeth assemblies with thread specifications of M3~M10. 2 Reference standards
GB 5783 Hexagon head bolt-full thread-A and B thread GB9074.27 External tooth pin lockwasher for assembly GB5267 Electroplating layer of threaded fasteners
GB 1237
Marking method of fasteners
Fastener acceptance inspection, marking and installation
Dimensions
The size is shown in the following figure and Table 1.
Type of head joint
Approved by the State Machinery Industry Commission on April 16, 1968, and implemented on January 199-01-01
Thread specification d
Note: Specifications in brackets should be avoided as much as possible. 4 Technical conditions
Technical conditions are shown in Table 2.
GB 8074.16-$8
Surface treatment
Other technical requirements
Acceptance and packaging
GB 9074.16—88
GB 5783
①Galvanized passivation
②Oxidation
GB5267www.bzxz.net
GE 9074.27
The whole cabinet should be able to rotate freely without falling off
Note: Except for ax, damx and rmln, the rest shall comply with the provisions of GB5783. 5 Marking
5.1 Marking method shall comply with the provisions of GB1237.
5.2 Marking example:
Explosion pattern specification d=M5, nominal length! -20mm, performance grade 8.8, zinc passivated surface hexagonal bolt and external serrated lock washer assembly marking:
bolt assembly
FGB9074.16
M5×20
Additional instructions:
This standard is proposed by the National Technical Committee for Fastening Standardization. This standard is under the jurisdiction of the National Machinery Industry Commission Standardization Institute. This standard is drafted by the National Machinery Industry Commission Standardization Institute. 537
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