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
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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 treatmentwww.bzxz.net 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 GB5283ST3.5×16 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. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.