GB/T 5284-1985 Slotted countersunk head self-tapping screws

This standard specifies slotted countersunk head self-tapping screws with thread specifications of ST 2.2 to ST 9.5. This standard is equivalent to the international standard ISO 1483-1983 "Slotted countersunk head self-tapping screws". GB/T 5284-1985 Slotted countersunk head self-tapping screws GB/T5284-1985 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Slotted raised countersunk head tapping screws
Slotted raised countersunk head tapping screws This standard specifies slotted raised countersunk head tapping screws with thread specifications of ST 2.2 to ST 9.5. This standard is equivalent to the international standard 1S01483-1983 "Slotted raised countersunk head tapping screws" 2 Reference standards
GB52B-"Thread for self-tapping screws";
GB3098.5-85 "Mechanical properties of fasteners-self-tapping screws": GB3103.1-82 "Tolerances of fasteners-bolts, screws and nuts" GB5279-85 "Head shape and measurement of countersunk screws" GB 5267-85 "Plating layer of threaded fasteners"; GB 90-8 "Fastener Acceptance Inspection, Marking and Packaging" 3 Dimensions
Standard or flat
National Bureau of Standards 1985-08-01
UDC621.882.215
.082.8
GB5284-85
1986-06-01
GB 5284-85
(Leading)
GB 5284--85
"Montisse Industry
Technical Xiao
5 Marking www.bzxz.net
Machine performance
Countersunk measurement
Surface treatment
Acceptance and packaging
Product grade
GB 52B4—85
GB5280--85
GB3098.5—85
GB3103.1-82
GB 5279 - 85
Galvanized passivation GB526785
GB 90 --85
Marking example of C-type slotted countersunk head self-tapping screws with thread specification ST3.5, nominal length 1=16mm and surface zinc-plated passivation: Self-tapping screw GB5284—85-ST3.5×16-C Additional instructions:
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Standardization Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Standardization Research Institute of the Ministry of Machinery Industry.
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