This standard specifies the tolerances for bolts, screws, studs and nuts of product grades A, B and C, and self-tapping screws of product grade A. GB/T 3103.1-2002 Fastener tolerances Bolts, screws, studs and nuts GB/T3103.1-2002 Standard download decompression password: www.bzxz.net

[CS 21.060.10
National Standard of the People's Republic of China
CB/T3103.1—2002
idtISo4759-1.2000
Tolerances for fasteners
Bolts, screws, studs and nuts
nuts2002-12-05 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2003-06-01
G63303.1-2002
This standard is the same as the Chinese version of the standard [1751:20 Fasteners: Part 1, Fasteners, screws, nuts and bolts, grade AB and grade AB (/T310. The general title is "Fastener Tolerances", including the following parts: GB/T3103.12C02 Fastener Tolerances, Fasteners, Screws, Nuts and Nuts C:15310%2-1982 Fastener Tolerances for Precision Machines. This standard is a revised version of T3203.11982. The main modifications are as follows: a) The tolerances of screws are modified (Chapter 1 and Chapter 2). It is stipulated that "when the tolerances specified in this standard are different from those specified in the product standard, the product standard shall prevail. " (Chapter 3) It is now stipulated that "when the tolerances specified in this standard are different from those specified in the product standard, the product standard shall prevail. " (Chapter 4) It is now stipulated that "when the minor diameter is taken as the standard, and the major diameter and the middle diameter of the axis can be slightly different (operating frequency), the major diameter of the screw is used as the axis, and the axis is marked with the letters D as the standard, and the measurement indicates that the major diameter is taken as the standard line. ...safety (B/171 provisions are used for the actual requirements. "(3.)" is replaced by "reverse" instead of "same beat", "right degree", and "full runout" instead of "verticality" (32?).) See that it is necessary to use the test of burning as the basis, the middle warp is the straight wire (4, 2) [add that "tight parts only with tolerance standard measurement method record", tower plus product specifications and other measurement original table check creation" appendix). This standard is from the actual H, replaced with G, 13103.1-1982. The technical standard is not the appendix A, the knife and the appendix C are the small time this standard is launched according to the account of the Central Dairy Machinery Industry Association. This standard is issued by the National The International Organization for Standardization (ISO) is a joint organization of national standards bodies (member bodies) around the world. The development of international standards is usually carried out through the various technical committees of the ISO. Each member body can also participate in the work of a certain technical committee if it is interested in the work of that committee. Changes related to ISO International organizations and non-governmental organizations may participate in this work. SO has a strong relationship with the International Electrotechnical Commission (IC) in the field of T standards. The development of international standards shall be carried out in accordance with the rules given in the IS/IEC Guide Part 1. The draft international standard adopted by the technical committee is circulated to all member groups for approval and decision. The official publication of international standards requires no votes from the member groups. The second edition of the international standard 1S047591 is based on the ISO/IEC Technical Committee 7, which has been revised and supplemented by the US Standards Subcommittee on the second edition (1S0473-18). Technical revision 1) 4759 is generally named "Tolerances of fasteners", including the following parts: Part 1: Screws, studs, end and screw limits for product grades A, C, etc. Part 2: Screws, studs and screws for products of groups F, C, etc. for fastening machinery Part 3: Screws, studs and end positions for product grades A, C, etc. Appendix A to Appendix C of this part is a reminder of the appendix. 1 Standard
National Standard of the People's Republic of China
Fastener Tolerances
Bolts, screws, studs and screws
Tolerances Inr fasteners
Bolts,srtews.stiksal mts
GB/T3103.1—2002
idt 1S0 4759-1:2000
substituting CB:T3103.11632
standardizes the specifications of grooves, screws, rivets and fittings of product grades A and C, and self-drilling screws of product grade 4.
Note: "Product grades are determined by tolerance size, and the most precise measurement is not accurate. Except for the frequency tolerance, all dimensional tolerances are selected from GB/T181.2 and GH/13H,4. The general thread tolerance is GH/TF1F, the self-retracting screw tolerance is 1/T5280. The current specifications and table of the shape and position of the network shall comply with the provisions of GB/T1182. GB/T4249 and GH/1671. If there is no provision, the tolerances specified in this standard apply to the current dimensions of the fastener chain, see B52?.-. When the tolerances specified in this standard and the product standard are different, the product standard shall prevail. These tolerances are also used for non-standard fasteners. The dimensions given in this standard are all in nur.: 2 Reference standards || TT || The following standards contain the content of the standard, and the referenced content in this standard constitutes the provisions of this standard: This standard is published, and the indicated edition is valid. All standards are included in the whole, and the parties using the standard should use the latest edition of the following standards when possible. /173.32000 internal countersunk screw (ESV015542, 1997) (H/1! 41.1-! X5 requires + font (cgIS door 4757, 1083) B/T1_92-1906 General rules for shape and position tolerances, definitions, symbols and drawing representations (ESV015542, 1997) 1/T1800.2-1098 Basics of micro-limit matching Part 2: Basic provisions for tolerances, deviations and fits eq150235-1: 1988)
GH: 180-1 Limits and matching standards Tolerance grade and limit deviation [1286-7: 8 GB/T25: 5-1081
When the account is relatively large (Zhuo will 1-~35>11G/T 3'03—2002
2 Book explosion bolt and screw head corner radius (id=1S0885:2000) G/12191996 Public Chongzhi (cq1) 80151985) 20 Electric
325—8 Fastener bolt thread frequency code and note 225:19%GR/T52731985
G/T 5230—2005
B:T528
GK/T 5170-200
Flow head screw shape beauty (: 1S07721: 10R3 fuel efficiency (idt15) 1478: 99)
Six head moon attack (41501473: 1083
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China 20021205 approved 2003-06-01 implementation
GB/T 3103.1—2002
G/Ti1882c light ring nail hexagonal flower shape (idt150) [0664: 1999) GB/T166711996 shape and price setting tolerance large actual rest fee delivery, minimum entity requirements and requirements (eqvIS0 26!2: 1596)
G/168211—199? Hexagonal self-tapping screw with flange 50706392) G3/T15824.21S97 Hexagonal self-tapping screw with flange (idt1S) 1050S: 1992) 3 Tolerances for screws, bolts and studs
3.1 Tolerances
Size numbers and selections shall be as specified in G3/T5275. Parts
3.1.1 Tolerance levels
Supporting parts
Other parts
3.1.2 External threads
3.1.3 Wedge parts
3.1.3. 1 External screw
313.1.1 Width across flats
H||R3
Control tools
, etc.
· In the relevant product
to the lower level standard
, other internal thread tolerance grades may be specified,
3.1.3.1.2 Diagonal width
3.1.3.1.3 Purchase degreebZxz.net
CB/T3103.1-2002
...= 1. 13 s..
=1.[2: ... (Melon) Dalan surface black press and screw needle and other cold lock into the door Wanjia edge machine products
..1.3..
Six-strategy method and course analysis of plate nails, see the urgent publication according to the maximum value
3. 1. 3. 1 4 Plate height
GH/T 3103. 1—2002
II5) -
d.ar1sn..
Collection: 1.25 or mn.4, the larger value:
——Flange angle.
The code and international applicable standards of the national and international standards are in accordance with
GB/T 5276.
. Determine the length of the product. Except for the surface or fillet, the width of the product is about 1. The width of the product is in the relevant product standard. It is applicable to the products listed in the specification. 1) The code point is used alone. 2) This specification is tested. The corresponding product meets the requirements of the standard. 3.1.3.2 Internal expansion 3.1.3.2.1 Internal expansion 3.1.3.2.2 Non-standard GB/T 3103. 1--2002
C13 is used for 1
C1 again
3.1. 3.2.3 Internal angle and mold opening depth [
3. 1. 3. 2. 4[Word error
3.1.3.2.5 Hexagon socket
3.1.4 Other parts
3.1.4.1 Diameter of the internal diameter
Figure: 3
GL/T3103.1—2002
Inner hexagon socket and
depth
Product standard specifies the minimum
Bo, it is subject to the minimum
Xiaoxiao thick heart
limit
Except for all minor changes
Insertion depth see relevant product standards
Except for all insertion depths: see
GH/T 6188. The relevant standards have not yet been studied and applied. 1) The straightness and length of the knurled head screws must be controlled and controlled, G/T5279, GET70.3, 3.1.4.2, head height (except for angle heads), 3.1.4.3, bearing surface straightness, light pad, two-sided consultation, 2.6 :1
1,
GA/T3103.-2002
Me:h13
~M5,h14
The required countersunk nail size is only determined in the product standard by the combined system of the side width
countersunk diameter and height, according to
(HT 5379 or
GB/T 70.3 current
drawing type
dl mar — 0.95ram C for the side width. :
disann
1.6---2. 3
7>4--5
>6~-[4
-14~-36
id, the magical benchmark,
). Standard: GB/T 3103.1-2002 product standard specifies that the minimum required thread diameter dn is 0.11 mm-1.2 mm. For A-shaped products only, for products with a backing tip, refer to the production standard of Ai. Products without backing tips are determined according to 3.1.4.4 Nominal length GB/T 3103.1-2002 15c:js17>:59:-T1F
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