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GB/T 83-2018: Square set screws with long dog point and rounded end
Status: Valid GB/T 83: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 83-2018 | English | 119 |
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3 days [Need to translate]
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Square set screws with long dog point and rounded end
| Valid |
GB/T 83-2018
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| GB/T 83-1988 | English | 279 |
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3 days [Need to translate]
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Square set screws with long dog point and rounded end
| Obsolete |
GB/T 83-1988
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PDF similar to GB/T 83-2018
Basic data | Standard ID | GB/T 83-2018 (GB/T83-2018) | | Description (Translated English) | Square set screws with long dog point and rounded end | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J13 | | Classification of International Standard | 21.060.10 | | Word Count Estimation | 6,656 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-07-01 | | Older Standard (superseded by this standard) | GB/T 83-1988 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 83-2018: Square set screws with long dog point and rounded end---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Square set screws with long dog point and rounded end
ICS 21.060.10
J13
National Standards of People's Republic of China
Replace GB/T 83-1988
Square head long cylindrical spherical end set screw
Published on.2018-12-28
2019-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard is one of the national standards for the “tightening screws” series. The series includes.
---GB/T 71 slotted tapered end set screws;
---GB/T 73 slotted flat end set screws;
---GB/T 74 slotted recessed set screws;
---GB/T 75 slotted long cylindrical end set screws;
---GB/T 77 hex flat end set screws;
---GB/T 78 hexagonal taper end set screws;
---GB/T 79 hexagonal cylindrical end set screws;
---GB/T 80 hex socket end set screws;
---GB/T 83 square head long cylindrical spherical end set screws;
---GB/T 84 square head concave end set screws;
---GB/T 85 square head long cylindrical end set screws;
---GB/T 86 square head short cylindrical cone end set screws;
---GB/T 821 square head flat end set screws.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 83-1988 "square head long cylindrical spherical end set screws". Compared with GB/T 83-1988, the main technical changes
The following is as follows.
--- Increase general technical conditions according to GB/T 16938 (see Table 2);
---The mechanical performance grade of stainless steel was modified to. A1-12H, A2-12H, A2-21H and A4-21H (see Table 2);
--- Add non-ferrous metals CU2, CU3 (see Table 2);
--- For steel screws, remove surface oxidation treatment, increase the technical requirements of untreated and non-electrolytic zinc sheet coating according to GB/T 5267.2 (see
Table 2);
--- For stainless steel screws, remove the untreated, add simple processing and passivation treatment technical requirements according to GB/T 5267.4 (see Table 2);
--- Add "If other technical requirements or surface treatment are required, the supply and demand agreement should be provided" (see Table 2);
--- Increase the surface defects of steel screws (see Table 2).
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Fastener Standardization Technical Committee (SAC/TC85).
This standard is drafted by. China Machine Productivity Promotion Center.
Participated in the drafting of this standard. Zhejiang Haili Co., Ltd., Zhejiang Huifeng Auto Parts Manufacturing Co., Ltd.
This standard is interpreted by the National Fastener Standardization Technical Committee.
The previous versions of the standards replaced by this standard are.
---GB 83-1958, GB 83-1966, GB 83-1976, GB/T 83-1988.
Square head long cylindrical spherical end set screw
1 Scope
This standard specifies the type size, technical conditions and markings of the square head long spherical end set screws.
This standard is applicable to square head long cylindrical spherical end set screws with thread specifications of M8~M20 and product grade A.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 90.1 fastener acceptance inspection
GB/T 90.2 Fastener Marking and Packaging
GB/T 193 Ordinary Thread Diameter and Pitch Series
GB/T 1237 fastener marking method
GB/T 2516 ordinary thread limit deviation
GB/T 3098.3 Fastener mechanical properties set screws
GB/T 3098.16 fastener mechanical properties stainless steel set screws
GB/T 3103.1 Fastener Tolerance Bolts, Screws, Studs and Nuts
GB/T 5267.1 fastener plating
GB/T 5267.2 fastener non-electrolytic zinc sheet coating
GB/T 5267.4 fastener surface treatment corrosion-resistant stainless steel passivation treatment
GB/T 5276 fastener bolts, screws, studs and nuts size code and label
GB/T 5779.1 fastener surface defects bolts, screws and studs are generally required
GB/T 9145 Ordinary thread medium precision, preferred series of extreme dimensions
GB/T 16938 fasteners, screws, studs and nuts - General technical requirements
3 type size
The type and dimensions of the screws are shown in Figure 1 and Table 1.
The size code and label should conform to GB/T 5276.
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