GB/T 5283-1985 Slotted countersunk head 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 1482-1983 "Slotted countersunk head self-tapping screws". GB/T 5283-1985 Slotted countersunk head self-tapping screws GB/T5283-1985 Standard download decompression password: www.bzxz.net

Subject content
National Standard of the People's Republic of China
Slotted countersunk head tapping screws
Slotted countersunk head tapping screwsThis standard specifies slotted countersunk head tapping screws with thread specifications of ST2.2~~ST9.5. This standard is equivalent to the international standard ISO1482-1983 "Slotted countersunk head tapping screws". Note: Commercial fastener varieties should be used first. 2 Reference standards
GB5280 Thread for self-tapping screws
GB 3098.5 Mechanical properties of fasteners Self-tapping screws GB3103.1 Fastener tolerances Bolts, screws and nuts GB5279 Countersunk screw head shape and measurement GB5267 Electroplating of threaded fasteners
GB 90 Fastener acceptance inspection, marking and packaging GB1237 Fastener marking method
3 Size
Round or flat
90°*2° 4
National Bureau of Standards 1985-08-01 Issued
UDC 621.882.215
.082.8
GB 5283-85
1986-06-01 Implementation
GB 5283--85
GB5283—85
Technical conditions
5 Marking
Mechanical properties
Measurement of countersunk heads
Surface treatment
Acceptance and packaging
5.1 The marking method shall be in accordance with GB1237.
5.2 Marking example:
Product grade
GB 5283—85
GB5280
GB 3098.5
Except for the provisions of Chapter 3, the rest shall be in accordance with Grade A
GB 3103. 1
GB5279
Galvanized passivation GB5267
Marking of C-type slotted countersunk tapping screws with thread specification ST3.5, nominal length 1=16mm, and surface zinc-plated passivation Self-tapping screws GB5283ST3.5×16www.bzxz.net
Additional instructions:
This standard is 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 is drafted by the Standardization Research Institute of the Ministry of Machinery Industry.
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