GOST 11530-93

Group D55

INTERSTATE STANDARD

BOLTS FOR RAIL JOINTS

Specifications

Rail joint bolts. Specifications

MKS 45.080
OKP 12 9600

Introduction date 1995-01-01

Foreword

1 DEVELOPED by Gosstandart of Russia

INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification on October 21, 1993

Voted to accept:

3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification of June 2, 1994 N 160, the interstate standard GOST 11530-93 was put into effect as the state standard of the Russian Federation from January 1, 1995.

4 INSTEAD OF GOST 11530-76

5 REVISION. July 2006

INFORMATION DATA

REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

This standard applies to bolts with a round head and an oval neck, accuracy class C, used for fastening with two-headed plates joints of railway rails of types P38, P43, P50, P65 and P75, as well as bolts with a reduced height of an oval neck for insulating joints of these types of rails .

The requirements of this standard are mandatory.

When supplying bolts for export as separate products, the requirements of this standard and GOST 16018 should be taken into account.

1. DESIGN AND DIMENSIONS

1 Design and dimensions

1.1 The design and dimensions of the bolts must correspond to those indicated in the figure and in table 1.

Crap. Version 1

Version 1

Crap. Execution 2

Execution 2

; , - average thread diameter

Table 1

Symbol examples

Bolt of accuracy class C, version 1, thread diameter 24 mm, with a large thread pitch, with a tolerance field of 8 g, 150 mm long, strength class 8.8, made of steel grade 35:

Bolt M24-8gx150.88.35 GOST 11530-93

The same, version 2, 160 mm long, strength class 10.9, made of 40X steel:

Bolt 2M24-8gх160.109.40X GOST 11530-93

2. TECHNICAL REQUIREMENTS

2 Technical requirements

2.1 Bolts for rail joints must be manufactured in accordance with the requirements of this standard and GOST 1759.0.

2.2 Bolts must be made of strength class 8.8 according to GOST 1759.4 * from steel grade 35 and strength class 10.9 according to GOST 1759.4 * from steel grade 40X or other grades that provide bolts of strength classes 8.8 and 10.9.
________________
GOST R 52627-2006

2.3 Thread - according to GOST 24705.

2.4 Tolerance field 8 g- according to GOST 16093, tolerance field 8h is allowed.

2.5 It is allowed to round the edges of the head with a radius of up to 1.5 mm, not leading the diameter of the head beyond the limit deviations, a burr or flash up to 1.5 mm in size, located along the perimeter of the bolt head perpendicular to its axis.

2.6 Tolerance of deviations in the shape and location of surfaces - according to GOST 1759.1 *.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 4759-1-2009 is valid, hereinafter in the text. - Database manufacturer's note.

2.7 Permissible bolt surface defects - according to GOST 1759.2 *.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 6157-1-2009 is valid, hereinafter in the text. - Database manufacturer's note.

2.8 The weight of the bolts is given in the appendix.

2.9 Bolts must be equipped with nuts in accordance with GOST 11532.

M22 bolts are allowed to be equipped with nuts in accordance with GOST 16018.

It is allowed to pack bolts together with nuts of the same standard size in a container.

2.10 The head of each bolt must be marked with the trademark or symbol of the manufacturer.

On bolts of strength class 10.9, the letter "P" is additionally applied.

The dimensions of the marking marks are set by the manufacturer.

2.11 Marking marks should be clearly visible to the naked eye, regardless of the quality of the surface treatment.

2.12 Packing of bolts and marking of containers - in accordance with GOST 18160.

3. ACCEPTANCE

3 Acceptance

3.1 Acceptance rules - according to GOST 17769 * for products of accuracy class C.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 3269-2009 is valid. - Database manufacturer's note.

3.2 Testing the mechanical properties of bolts should be carried out at the request of the consumer in accordance with GOST 1759.4.

3.3 Testing for temporary tensile strength by the method of destructive testing should be carried out - 5 bolts, and by the non-destructive method - 8 bolts from the presented lot.

4. CONTROL METHODS

4 Control methods

4.1 The appearance of the bolts should be checked without the use of magnifying devices.

4.2 Size control methods - according to GOST 1759.1.

4.3 Control of surface defects - according to GOST 1759.2.

4.4 Control of tensile strength - according to

Bolt thread diameter

Minimum breaking load for bolts of strength classes, N (kgf)

315000 (32100)

367000 (37400)

477000 (48600)

5. TRANSPORTATION

5 Transportation

Transportation of bolts together with nuts should be carried out by any means of transport, except for railway platforms.

It is allowed to transport bolts without packaging in a container.

APPENDIX (reference). Theoretical weight of 1000 bolts for rail joints, kg

APPENDIX
(reference)

Table 3

Electronic text of the document
prepared by Kodeks JSC and verified against:
official publication
M.: Standartinform, 2006

GOST 11530-2014

INTERSTATE STANDARD

BOLTS FOR RAIL JOINTS

Specifications

Rail joint bolts. Specifications

Introduction date 2015-07-01

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, updates and cancellations

About the standard

1 DEVELOPED by the Federal State Budgetary Educational Institution of Higher Professional Education "Petersburg State University of Communications Emperor Alexander I" (FGBOU VPO "PGUPS")

2 INTRODUCED by the Interstate Technical Committee for Standardization MTK 524 "Railway Transport"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes of December 5, 2014 N 46-2014)

Voted for the adoption of the standard:

4 By order of the Federal Agency for Technical Regulation and Metrology dated February 17, 2015 N 84-st, the interstate standard GOST 11530-2014 was put into effect as the national standard of the Russian Federation from July 1, 2015.

5 INSTEAD OF GOST 11530-93


Information about changes to this standard is published in the annual information index "National Standards", and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

1 area of ​​use

1 area of ​​use

This standard applies to bolts with a round head and an oval neck (hereinafter referred to as bolts), accuracy class C according to GOST 1759.1 *, used for fastening double-headed overlays of joints of railway rails of types P38, P43, P50, P65 and P75, as well as bolts with a reduced the height of the oval head for insulating joints of the indicated types of rails and establishes the technical conditions for them.
________________
GOST R ISO 4759-1-2009 "Fasteners. Tolerances. Part 1. Bolts, screws, studs and nuts. Accuracy classes A, B and C".

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 9.014-78 Unified system of protection against corrosion and aging. Temporary anticorrosive protection of products. General requirements

GOST 15.309-98 System for the development and production of products. Testing and acceptance of manufactured products. Key points

GOST 166-89 (ISO 3599-76) Calipers. Specifications

GOST 1497-84 (ISO 6892-84) Metals. Tensile test methods

GOST 1759.1-82 Bolts, screws, studs, nuts and screws. Tolerances. Methods for controlling dimensions and deviations in the shape and location of surfaces

GOST 1759.2-82 (ST SEV 2179-80) Bolts, screws and studs. Surface Defects and Control Methods*
________________
* In the Russian Federation, GOST R ISO 6157-1-2009 applies


GOST 1759.4-87 (ISO 898/1-78) Bolts, screws and studs. Mechanical properties and test methods

GOST 5378-88 (ST SEV 850-87) Goniometers with vernier. Specifications

GOST 9454-78 Metals. Test method for impact bending at low, room and elevated temperatures

GOST 15150-69 Machinery, instruments and other technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of environmental climatic factors

GOST 16093-2004 (ISO 965-1:1998, ISO 965-3:1998) Basic standards of interchangeability. The thread is metric. Tolerances. Landings with clearance

GOST 17769-83 (ISO 3269-99) Fasteners. Acceptance rules*
________________
* GOST R ISO 3269-2009 applies in the Russian Federation


GOST 18160-72 Fasteners. Package. Marking. Transportation and storage

GOST 18321-73 (ST SEV 1934-79) Statistical quality control. Methods for random selection of samples of piece products

GOST 24705-2004 (ISO 724:1993) Basic standards of interchangeability. The thread is metric. Main dimensions

GOST 24997-2004 (ISO 1502:1996) Gauges for metric threads. Tolerances

Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or according to the annual information index "National Standards", which was published as of January 1 of the current year, and on issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Terms and definitions

In this standard, the following term is used with the corresponding definition:

railway infrastructure owner: A legal entity or an individual entrepreneur who owns the infrastructure of public railway transport on the basis of the right of ownership or other right and provides services for its use on the basis of an agreement.

4 Design and dimensions

4.1 The design and dimensions of the bolts must correspond to those shown in Figure 1.

; , - average thread diameter

* Dimensions, including those subject to control when confirming the minimum necessary safety requirements.

Figure 1 - Design and dimensions of bolts: a) execution 1; b) execution 2.

Table 1 - Bolt dimensions

In millimeters

Examples of symbols: Bolt of accuracy class C, execution 1, thread diameter d=24 mm, with a coarse thread pitch, tolerance field 8g, length 150 mm, strength class 8.8, made of steel grade 35:

Bolt M24-8g 150.88.35

The same, version 2, 160 mm long, strength class 10.9, made of 40X steel:

Bolt 2M24-8g 160.109.40X

5 Technical requirements

5.1 Main characteristics, material requirements

5.1.1 Permissible bolt surface defects - according to GOST 1759.2 *.
________________
* In the Russian Federation, GOST R ISO 6157-1-2009 "Fasteners. Surface defects. Part 1: General purpose bolts, screws and studs" is in force.

5.1.2 It is allowed to round the edges of the head with a radius of up to 1.5 mm, not leading the diameter of the head beyond the limit deviations, a burr or flash up to 1.5 mm in size, located along the perimeter of the bolt head perpendicular to its axis.

5.1.3 Bolts are made of strength class 8.8 according to GOST 1759.4 from steel grade 35, strength class 10.9 - according to GOST 1759.4 from steel grade 40X or other grades that provide bolts of strength classes 8.8 and 10.9.

The minimum breaking tensile loads for bolts are shown in table 2.


Table 2 - Loads

V N (kgf)

5.1.4 Thread - according to GOST 24705. Tolerance field 8g according to GOST 16093. In agreement with the owner of the railway transport infrastructure, a tolerance field is allowed 8h.

5.1.5 Tolerance of deviations in the shape and location of surfaces - according to GOST 1759.1.

5.1.6 The theoretical mass of bolts is given in Appendix A.

5.2 Marking

5.2.1 The head of each bolt shall be stamped with a marking containing the trademark or designation of the manufacturer.

On bolts of strength class 10.9, an additional letter is applied "P".

The height of the marking signs is not less than 8 mm, the thickness is not less than 1 mm, the concavity is not less than 0.5 mm.

5.2.2 The applied markings must be clearly distinguishable without the use of magnifying devices, regardless of the quality of the surface treatment.

5.3 Packaging

Packing of bolts and marking of a container - in accordance with GOST 18160.

6 Acceptance rules

6.1.1 To control the compliance of bolts with the requirements of this standard, tests are carried out:

- acceptance;

- typical.

6.1.2 Acceptance of bolts is carried out by the technical control service of the manufacturer. Acceptance is carried out according to the results of acceptance tests.

Acceptance tests are carried out in accordance with GOST 15.309. Bolts accepted by the manufacturer's technical control service are presented for acceptance control to the customer's representative upon request.

The results of acceptance of bolts are stored at the manufacturing plant for at least three years from the date of their manufacture.

6.2 Acceptance tests

6.2.1 Acceptance tests of bolts are carried out in batches. The batch must consist of bolts manufactured according to the same technological process, of the same design, from the metal of the same heat and presented for acceptance according to one document.

By agreement between the owner of the railway transport infrastructure and the manufacturer, it is allowed to complete a batch of bolts of the same size, manufactured according to the same technological process, without regard to belonging to the same heat.

Acceptance rules and lot size according to GOST 17769 FROM. The test for temporary tensile strength (5.1.3) is subjected to 5 bolts by the destructive method, and 8 bolts from the presented batch by the non-destructive method.
________________
* In the Russian Federation, GOST R ISO 3269-2009 "Fastening products. Acceptance control" is in force.

6.2.2 Shipped lots of bolts must be accompanied by a quality certificate, which indicates:

- name or trademark of the manufacturer and its address;

- the size of the bolts;

- steel grade, strength class;

- type of temporary anti-corrosion protection and protection period;

- batch number;

- the number of bolts in each batch and the total number of bolts in pieces;

- acceptance results.

It is allowed to enter additional information into the quality passport that does not contradict the requirements of this standard.

The quality certificate must be signed by representatives of the technical control service.

6.2.3 The indicators and the procedure for conducting acceptance tests are given in Table 3.


Table 3 - Indicators and procedure for conducting acceptance tests

6.3 Type tests

6.3.1 Type tests are carried out in case of a change in the technological process for the manufacture of bolts, as well as in case of a change in the materials used.

6.3.2 The procedure for conducting type tests and evaluation of the results in accordance with GOST 15.309 (Appendix A).

7 Control methods

7.1 Checking the dimensions (see 4.1), the appearance of the bolts (see 5.1.2), the shape and location of the surfaces (see 5.1.5) is carried out without the use of magnifying devices using a ShTs-II type caliper according to GOST 166 and clause 6.2 (ISO 898-1:1999) "Bolts, screws and studs - Mechanical properties and test methods".

7.5 The control of applied markings (see 5.2.1, 5.2.2) is carried out visually, without the use of magnifying devices.

7.6 For the purposes of mandatory confirmation of conformity, a batch that has passed acceptance tests is completed by the blind selection method in accordance with GOST 18321 (subsection 3.4) with a sample, size in accordance with GOST 17769 * for products of accuracy class FROM.
________________
* In the Russian Federation, GOST R ISO 3269-2009 "Fastening products. Acceptance control" is in force.


The number of bolts for testing for tensile strength (see 5.1.3) by the destructive method - 2 bolts, and by the non-destructive method - 4 bolts from the submitted lot.

8 Transport and storage

8.1 Transportation of bolts without packaging in containers on railway platforms is not allowed.

8.2 During storage, the bolts are subjected to conservation in accordance with GOST 9.014 for a period that provides protection against corrosion for at least 1 year.

8.3 Storage conditions for bolts - 6 according to GOST 15150.

9 Manufacturer's warranties

Warranty period of operation is not less than 100 million tons of gross missed cargo, but not more than three years from the date of laying on the road.

Annex A (informative)

Table A.1 — Theoretical mass of 1000 bolts for rail joints

In kilograms

UDC 621.882.6 MKS 45.080

Key words: rail joint bolts, oval head, thread, dimensions, bolt head
__________________________________________________________________________________

Electronic text of the document
prepared by Kodeks JSC and verified against:
official publication
M.: Standartinform, 2015

INTERSTATE STANDARD

BOLTS FOR RAIL JOINTS
RAILWAY

TECHNICAL CONDITIONS

INTERSTATE COUNCIL FOR STANDARDIZATION,
METROLOGY AND CERTIFICATION

Minsk

Foreword

1 DEVELOPED by Gosstandart of Russia

INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification on October 21, 1993

3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification dated 02.06.94 No. 160, the interstate standard GOST 11530-93 was put into effect directly as the state standard of the Russian Federation from 01.01.95

4 INSTEAD OF GOST 11530-76

INTERSTATE STANDARD

Introduction date01.01.05

This standard applies to bolts with a round head and an oval neck, accuracy class C, used for fastening with two-headed plates joints of railway rails of types P38, P43, P50, P65 and P75, as well as bolts with a reduced height of an oval neck for insulating joints of these types of rails .

The requirements of this standard are mandatory.

When supplying bolts for export as separate products, the requirements of this standard and GOST 16018 should be taken into account.

1. DESIGN AND DIMENSIONS

1.1. The design and dimensions of the bolts must correspond to those indicated in the drawing and in table. one.

Version 1

Execution 2

R = K; d 1 » d Wed , d Wed- average thread diameter

Table 1

Symbol examples

Bolt of accuracy class C, version 1, thread diameter d= 24 mm, coarse pitch, tolerance 8g, length 150 mm, strength class 8.8, steel grade 35:

BoltM24-8 g´ 150.88.35 GOST 11530-93

The same, version 2, 160 mm long, strength class 10.9, made of 40X steel:

Bolt 2M24-8 g´ 160.109.40 XGOST 11530-93

2. TECHNICAL REQUIREMENTS

2.1. Bolts for rail joints must be manufactured in accordance with the requirements of this standard and GOST 1759.0.

2.2. Bolts must be made of strength class 8.8 according to GOST 1759.4 from steel grade 35 and strength class 10.9 according to GOST 1759.4 from steel grade 40X or other grades that provide bolts of strength classes 8.8 and 10.9.

2.3. Thread - according to GOST 24705.

2.4. Tolerance field 8g - according to GOST 16093, tolerance field 8h is allowed.

2.5. It is allowed to round the edges of the head with a radius of up to 1.5 mm, not leading the diameter of the head beyond the limit deviations, a burr or flash up to 1.5 mm in size, located along the perimeter of the bolt head perpendicular to its axis.

2.6. Tolerance of deviations in the shape and location of surfaces - according to GOST 1759.1.

2.7. Permissible bolt surface defects - according to GOST 1759.2.

2.8. The weight of the bolts is given in the appendix.

2.9. Bolts must be equipped with nuts in accordance with GOST 11532.

M22 bolts are allowed to be equipped with nuts in accordance with GOST 16018.

It is allowed to pack bolts together with nuts of the same standard size in a container.

2.10. The head of each bolt must be marked with the trademark or symbol of the manufacturer.

On bolts of strength class 10.9, the letter “P” is additionally applied.

The dimensions of the marking marks are set by the manufacturer.

2.11. Marking marks must be clearly visible to the naked eye, regardless of the quality of the surface finish.

2.12. Packing of bolts and marking of a container - in accordance with GOST 18160.

3. ACCEPTANCE

3.1. Acceptance rules - according to GOST 17769 for products of accuracy class C.

3.2. Testing of the mechanical properties of bolts should be carried out at the request of the consumer in accordance with GOST 1759.4.

3.3. The test for temporary tensile strength by the method of destructive testing should be subjected to - 5 bolts, and by the non-destructive method - 8 bolts from the presented batch.

4. CONTROL METHODS

4.1. The appearance of the bolts should be checked without the use of magnifying devices.

4.2. Size control methods - according to GOST 1759.1.

4.3. Control of surface defects - according to GOST 1759.2.

4.4. The control of tensile strength is according to GOST 1497 and clause 6.2 of GOST 1759.4.

4.5. Determination of impact strength - according to GOST 9454 and clause 6.6 of GOST 1759.4.

4.6. The bolt is considered to have passed the tensile test (s in) if the destruction occurs along the rod or thread, but not at the junction of the head with the rod at the loads indicated in Table. 2.

table 2

5. TRANSPORTATION

Transportation of bolts together with nuts should be carried out by any means of transport, except for railway platforms.

It is allowed to transport bolts without packaging in a container.

APPENDIX

Reference

Theoretical weight of 1000 bolts for rail joints, kg

Table 3

Note. The weight of the bolts is determined based on the nominal dimensions and steel density of 7850 kg/m 3 .

INFORMATION DATA

REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

Railway technology. GOST 11530-93: Bolts for rail joints of a railway track. Specifications. OKS: Railway engineering, Rails and components of railways. GOSTs. Bolts for rail joints of the railway track. .... class=text>

GOST 11530-93

Bolts for rail joints of the railway track. Specifications

GOST 11530-93
Group D55

INTERSTATE STANDARD

BOLTS FOR RAIL JOINTS

Specifications

Rail joint bolts. Specifications

MKS 45.080
OKP 12 9600

Introduction date 1995-01-01

Foreword

1 DEVELOPED by Gosstandart of Russia
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification on October 21, 1993
Voted to accept:

3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification of June 2, 1994 N 160, the interstate standard GOST 11530-93 was put into effect as the state standard of the Russian Federation from January 1, 1995.

4 INSTEAD OF GOST 11530-76
5 REVISION. July 2006

INFORMATION DATA

REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

This standard applies to bolts with a round head and an oval neck, accuracy class C, used for fastening with two-headed plates joints of railway rails of types P38, P43, P50, P65 and P75, as well as bolts with a reduced height of an oval neck for insulating joints of these types of rails .
The requirements of this standard are mandatory.
When supplying bolts for export as separate products, the requirements of this standard and GOST 16018 should be taken into account.

1. DESIGN AND DIMENSIONS

1 Design and dimensions

1.1 The design and dimensions of the bolts must correspond to those indicated in the figure and in table 1.

Crap. Version 1

Version 1

Crap. Execution 2

Execution 2

; , - average thread diameter

Table 1

Symbol examples
Bolt of accuracy class C, version 1, thread diameter 24 mm, with a large thread pitch, with a tolerance field of 8 g, 150 mm long, strength class 8.8, made of steel grade 35:

Bolt M24-8gx150.88.35 GOST 11530-93

The same, version 2, 160 mm long, strength class 10.9, made of 40X steel:

Bolt 2M24-8gх160.109.40X GOST 11530-93

2. TECHNICAL REQUIREMENTS

2 Technical requirements

2.1 Bolts for rail joints must be manufactured in accordance with the requirements of this standard and GOST 1759.0.

2.2 Bolts must be made of strength class 8.8 according to GOST 1759.4* from steel grade 35 and strength class 10.9 according to GOST 1759.4* from steel grade 40X or other grades that provide bolts of strength classes 8.8 and 10.9.
________________
* The document is not valid on the territory of the Russian Federation. GOST R 52627-2006 is valid, hereinafter in the text. - Database manufacturer's note.

2.3 Thread - according to GOST 24705.

2.4 Tolerance field 8 g- according to GOST 16093, tolerance field 8h is allowed.

2.5 It is allowed to round the edges of the head with a radius of up to 1.5 mm, not leading the diameter of the head beyond the limit deviations, a burr or flash up to 1.5 mm in size, located along the perimeter of the bolt head perpendicular to its axis.

2.6 Tolerance of deviations in the shape and location of surfaces - according to GOST 1759.1 *.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 4759-1-2009 applies, hereinafter in the text. - Database manufacturer's note.

2.7 Permissible bolt surface defects - according to GOST 1759.2*.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 6157-1-2009 is valid, hereinafter in the text. - Database manufacturer's note.

2.8 The weight of the bolts is given in the appendix.

2.9 Bolts must be completed with nuts in accordance with GOST 11532.
M22 bolts are allowed to be equipped with nuts in accordance with GOST 16018.
It is allowed to pack bolts together with nuts of the same standard size in a container.

2.10 The head of each bolt must be marked with the trademark or symbol of the manufacturer.
On bolts of strength class 10.9, the letter "P" is additionally applied.
The dimensions of the marking marks are set by the manufacturer.

2.11 Marking marks should be clearly visible to the naked eye, regardless of the quality of the surface treatment.

2.12 Packing of bolts and marking of containers - according to GOST 18160.

3. ACCEPTANCE

3 Acceptance

3.1 Acceptance rules - according to GOST 17769 * for products of accuracy class C.
________________
* The document is not valid on the territory of the Russian Federation. GOST R ISO 3269-2009 is valid. - Database manufacturer's note.

3.2 Testing the mechanical properties of bolts should be carried out at the request of the consumer in accordance with GOST 1759.4.

3.3 Testing for temporary tensile strength by the method of destructive testing should be carried out - 5 bolts, and by the non-destructive method - 8 bolts from the presented lot.

4. CONTROL METHODS

4 Control methods

4.1 The appearance of the bolts should be checked without the use of magnifying devices.

4.2 Size control methods - according to GOST 1759.1.

4.3 Control of surface defects - according to GOST 1759.2.

4.4 Control of tensile strength - in accordance with GOST 1497 and clause 6.2 of GOST 1759.4.

4.5 Determination of impact strength - according to GOST 9454 and clause 6.6 of GOST 1759.4.

4.6 The bolt is considered to have passed the tensile test () if the destruction occurs along the rod or thread, but not at the junction of the head with the rod at the loads specified in table 2.

table 2

5. TRANSPORTATION

5 Transportation

Transportation of bolts together with nuts should be carried out by any means of transport, except for railway platforms.
It is allowed to transport bolts without packaging in a container.

APPENDIX (reference). Theoretical weight of 1000 bolts for rail joints, kg

APPENDIX
(reference)

Table 3