Standard Number: GB/T 6188-2017
Chinese:螺栓和螺钉用内六角花形
English:Hexalobular internal driving feature for bolts and screws
Effective Date:2018-04-01
Regulatory Authority:China Machinery Industry Federation
Issuing Regulatory Authority:General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China,National Standardization Administration of China
Adheres to international standards:Y
PDF Downloadable:N
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