GOST 16017-2014 Embedded Bolts for Railway Track Rail Fastenings. Technical Specifications

GOST 16017-2014

INTERSTATE STANDARD

EMBEDDED BOLTS FOR RAILWAY TRACK RAIL FASTENINGS

Technical specifications

Inserted bolts for rail track fastenings. Specifications

ICS 45.080

Effective date: 2015-07-01

Foreword

The objectives, basic principles and the basic procedure for performing interstate standardization work are established by GOST 1.0-2015 and GOST 1.2-2015.

(Amended edition, Amendment No. 1).

Information about the standard

2 SUBMITTED by Interstate Technical Committee for Standardization MTK 524 “Railway Transport”

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 46-2014 dated 5 December 2014)

The following voted in favor of adoption of the standard:

Short name of the country according to MC (ISO 3166) 004-97	Country code according to MC (ISO 3166) 004-97	Abbreviated name of the national standardization body
Azerbaijan	AZ	Azstandard
Armenia	AM	Ministry of Economy of the Republic of Armenia
Belarus	BY	Gosstandart of the Republic of Belarus
Kazakhstan	KZ	Gosstandart of the Republic of Kazakhstan
Kyrgyzstan	KG	Kyrgyzstandart
Moldova	MD	Moldova-Standard
Russia	RU	Rosstandart
Tajikistan	TJ	Tajikstandart
Turkmenistan	TM	Main State Service “Turkmenstandartlary”
Uzbekistan	UZ	Uzstandard
Ukraine	UA	Gospotrebstandart of Ukraine

4 By Order No. 87-st of the Federal Agency for Technical Regulation and Metrology dated 17 February 2015, interstate standard GOST 16017-2014 was put into effect as a national standard of the Russian Federation on 1 July 2015.

5 SUPERSEDES GOST 16017-79

Information about amendments to this standard is published in the annual information index “National Standards”. Amendment No. 1 has been INTRODUCED, approved and put into effect by Order No. 1156-st of the Federal Agency for Technical Regulation and Metrology dated 26.12.2018, effective from 01.03.2019.

1 Scope

This standard applies to normal-precision embedded bolts (product grade B per GOST 1759.1) used to fasten metal base plates or rails to reinforced concrete sub-rail bases in rail fastenings, and establishes technical specifications.

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 9.014-78 Unified system of corrosion and ageing protection. Temporary corrosion protection of products. General requirements

GOST 9.301-86 Unified system of corrosion and ageing protection. Metallic and non-metallic inorganic coatings. General requirements

GOST 9.302-88 Unified system of corrosion and ageing protection. Metallic and non-metallic inorganic coatings. Control methods

GOST 9.303-84 Unified system of corrosion and ageing protection. Metallic and non-metallic inorganic coatings. General requirements for selection

GOST 15.309-98 System for product development and production start-up. Testing and acceptance of manufactured products. Basic provisions

GOST 166-89 (ISO 3599-76) Vernier calipers. Technical specifications

GOST 1759.1-82 Bolts, screws, studs, nuts and wood screws. Tolerances. Methods for checking dimensions and deviations of shape and position of surfaces*

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• In the Russian Federation, GOST ISO 4759-1-2015 “Fasteners. Tolerances. Part 1. Bolts, screws, studs and nuts. Product grades A, B and C” is in effect.

GOST 1759.2-82 Bolts, screws and studs. Surface defects and control methods**

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** In the Russian Federation, GOST ISO 6157-1-2015 “Fasteners. Surface defects. Part 1. General-purpose bolts, screws and studs” is in effect.

GOST ISO 898-1-2014 Mechanical properties of fasteners made of carbon and alloy steel. Part 1. Bolts, screws and studs of specified property classes with coarse and fine pitch thread

GOST 5378-88 Vernier protractors. Technical specifications

GOST 15150-69 Machines, instruments and other technical products. Versions for different climatic regions. Categories, operating, storage and transportation conditions as regards exposure to climatic environmental factors

GOST 16093-2004 (ISO 965-1:1998, ISO 965-3:1998) Basic standards of interchangeability. Metric thread. Tolerances. Clearance fits

GOST ISO 3269-2015 Fasteners. Acceptance inspection

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

GOST 18321-73 Statistical quality control. Methods of random sampling of unit production items

GOST 24705-2004 (ISO 724:1993) Basic standards of interchangeability. Metric thread. Basic dimensions

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

GOST 32894-2014 Railway products. Inspection control. General provisions

Note - When using this standard, it is advisable to check the validity of the referenced standards in the publicly available information system on the official website of the Federal Agency for Technical Regulation and Metrology, or in the annual information index “National Standards”. If a referenced standard is replaced (amended), the replacing (amended) standard should be followed. If a referenced standard is withdrawn without replacement, the provision referring to it applies to the extent not affected by that reference.

(Amended edition, Amendment No. 1).

3 Terms and definitions

3.1 railway infrastructure owner: A legal entity or individual entrepreneur that owns, or holds other rights to, public railway infrastructure and provides services for its use under a contract.

3.2 customer: An enterprise (organization, association or other entity engaged in economic activity) on whose request or under whose contract products are developed and (or) supplied.

Section 3 (Revised, Amendment No. 1).

4 Design and dimensions

4.1 The design and dimensions of the bolts shall conform to those shown in Figure 1.

Figure 1 - Design and dimensions of bolts

Index groove variant

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• Dimensions are given taking into account the height of seams from the die parting line, metal fillets at the under-head corners, and burrs from flash trimming.

** Dimensions, including those subject to verification when confirming minimum required safety requirements.

Note - For bolts with rolled thread, a chamfer with the following dimensions is permitted: shank end diameter (18.0±1.0) mm; height (4.0±1.0) mm.

Figure 1* - Design and dimensions of bolts

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• Revised, Amendment No. 1.

Designation examples

Embedded bolt of product grade B, with thread diameter 22 mm, coarse pitch thread, tolerance field 8, length 175 mm, property class 4.8, made of killed steel, with zinc chromate coating (01), thickness 15 µm (15):

Bolt M22-8×175.48.0115 GOST 16017-2014

The same, length 200 mm, without coating:

Bolt M22-8×200.48 GOST 16017-2014

Examples (Revised, Amendment No. 1).

4.2 Bolts may be manufactured with a length from 145 to 225 mm and a thread length ranging from 40 to 84 mm. The length of the embedded bolt and its thread is specified in the infrastructure owner’s order.

In this case, the bolt length shall be a multiple of 5 mm, and the thread length a multiple of:

• 4 mm - for thread length up to and including 60 mm;

• 6 mm - for thread length over 60 mm.

5 Technical requirements

5.1 Basic characteristics, material requirements

5.1.1 Offset of the head and sub-head axis relative to the bolt shank axis — not more than 0.9 mm.

5.1.2 Thickening of the shank under the head — not more than 1 mm over a length of 25 mm.

5.1.3 A deviation from perpendicularity of the indicator groove axis to the major axis of the bolt head of up to 5° is permitted, as well as an offset of the groove axis from its diametral position of up to 2 mm.

Groove offset along the minor axis is not controlled.

5.1.4 The mechanical properties of bolts shall conform to property class 4.8 or 5.8 per GOST ISO 898-1.

(Amended edition, Amendment No. 1).

5.1.5 After testing for threefold screwing-in and unscrewing, there shall be no:

• damage to the bolt thread preventing its reuse;

• jamming or stripping when running nuts onto the bolt thread.

(Amended edition, Amendment No. 1).

5.1.6 Thread — per GOST 24705. Tolerance class 8g per GOST 16093.

5.1.7 Permissible surface defects of bolts — per GOST 1759.2*

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• In the Russian Federation, GOST ISO 6157-1-2015 “Fasteners. Surface discontinuities. Part 1. Bolts, screws and studs for general requirements” applies.

(Amended edition, Amendment No. 1).

5.1.8 Bolts are supplied without protective coating. Subject to agreement with the infrastructure owner/customer, bolts may be manufactured with a protective coating meeting the requirements of GOST 9.301. Requirements for the thickness of the metallic protective coating — per GOST 9.303.

(Amended edition, Amendment No. 1).

5.1.9 Theoretical mass of 1000 bolts — 635 kg. The change in mass of 1000 bolts when their length changes by 10 mm shall not exceed 25.7 kg.

5.2 Marking

Raised marking shall be applied to the head of each bolt, containing the trademark or code of the manufacturing plant and the year of manufacture (last two Arabic digits).

The height of the marking characters shall be not less than 8 mm, the thickness not less than 1 mm, and the embossing not less than 0.5 mm.

(Amended edition, Amendment No. 1).

5.3 Packaging

Packaging of bolts and marking of containers — per GOST 18160. Packaging of bolts in specialized flexible containers made of polypropylene fabric is permitted.

(Amended edition, Amendment No. 1).

6 Acceptance rules

6.1 Test categories

6.1.1 To verify compliance of bolts with the requirements of the standard, the following tests are performed:

• acceptance tests;

• periodic tests;

• type tests.

(Amended edition, Amendment No. 1).

6.1.2 Acceptance of bolts is performed by the manufacturer’s quality control department based on the results of acceptance tests.

Acceptance tests are performed per GOST 15.309. Bolts accepted by the manufacturer’s quality control department are presented for acceptance inspection to the customer’s representative upon request in accordance with GOST 32894.

The results of bolt acceptance shall be kept at the manufacturer for at least three years from the date of manufacture.

(Amended edition, Amendment No. 1).

6.2 Acceptance tests

6.2.1 Acceptance tests of bolts are performed by lots. A lot shall consist of bolts manufactured by a single process route from metal of a single melt and submitted for acceptance under a single document.

Subject to agreement between the owner of the railway infrastructure and the manufacturer, a lot may be made up of bolts of one size, manufactured by a single process route, regardless of whether they belong to the same melt.

Acceptance rules and lot size — per GOST ISO 3269 for product grade B items.

(Amended edition, Amendment No. 1).

6.2.2 Shipped lots of bolts shall be accompanied by a quality passport indicating:

• the name or trademark of the manufacturer and its address;

• the batch number and size;

• length, design type, type and thickness of the protective coating;

• the property class, steel grade;

• type of temporary corrosion protection and protection period (for bolts without protective coating);

• acceptance results.

Additional information not contradicting the requirements of the standard may be entered in the quality passport.

The quality passport must be signed by representatives of the quality control department.

6.2.3 The parameters and procedure for conducting acceptance tests are given in Table 1.

Table 1 - Parameters and procedure for conducting acceptance tests

Parameter checked	Clause, subclause of the standard containing the requirements checked during acceptance tests	Inspection method
1 Appearance	5.1.1-5.1.3	7.1
2 Dimensions	4.1, 4.2, 5.1.6	7.1
3 Surface quality	5.1.7	7.2
4 Mechanical properties	5.1.4	7.3
5 (Deleted, Amendment No. 1).
6 Protective coating	5.1.8	7.5
7 Marking	5.2	7.6

6.3 Type tests

6.3.1 Type tests are carried out in the event of changes to the production process for manufacturing bolts, as well as in the event of changes to the materials used.

6.3.2 The procedure for conducting type tests and evaluating the results is per GOST 15.309 (Annex A).

6.4 Periodic tests

6.4.1 Periodic tests include tests for threefold screwing-in and unscrewing in accordance with 5.1.5.

6.4.2 Periodic tests are performed on bolts sampled from any lot of bolts that has passed acceptance tests, with a frequency of not less than once a week.

6.4.3 When sampling and testing bolts, the following requirements shall be taken into account:

• bolts for testing are sampled by the “blind” method per GOST 18321-73 (subsection 3.4);

• the number of bolts for testing — not less than five pieces.

6.4.4 When manufacturing bolts from a new metal melt, periodic tests shall be performed in compliance with the requirements of 6.4.1-6.4.3.

Subsection 6.4 (Introduced additionally, Amendment No. 1).

7 Inspection methods

7.1 Verification of dimensions (see 4.1, 4.2), appearance of bolts, shape and position of surfaces (see 5.1.1-5.1.3) shall be performed using a caliper with technical requirements conforming to GOST 166, a type 2 protractor per GOST 5378, and limit gauges. Thread dimensions (see 5.1.6) — using limit gauges per GOST 24997.

(Amended edition, Amendment No. 1).

7.2 Methods for inspecting surface defects (see 5.1.7) — per GOST 1759.2*

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• In the Russian Federation, GOST ISO 6157-1-2015 “Fasteners. Surface discontinuities. Part 1. Bolts, screws and studs for general requirements” applies.

(Amended edition, Amendment No. 1).

7.3 Mechanical properties of bolts (see 5.1.4) — per GOST ISO 898-1. Hardness measurement and wedge-loading tensile test are not performed.

(Amended edition, Amendment No. 1).

7.4 Tests for threefold screwing-in and unscrewing

7.4.1 Tests for threefold screwing-in and unscrewing (see 5.1.5) are performed on an assembled threaded joint set of a KB-type intermediate rail fastening unit. The number of samples for testing and requirements for their selection — in accordance with 6.4.2-6.4.4.

7.4.2 Tests are carried out by running a nut onto the embedded bolt. The nut tightening force during testing shall correspond to a torque of 150 N·m.

The operations of running on, tightening and unscrewing the nut on the same bolt are performed 3 times.

7.4.3 If, as a result of testing, at least one bolt from the sample fails the test for threefold screwing-in and unscrewing, repeat tests are performed on double the number of samples from the lot from which the original sample was taken. Repeat tests on the doubled sample are considered final and apply to the entire lot.

7.4.4 If unsatisfactory results are obtained in the repeat tests, the lot is rejected, an analysis of the test results is carried out to identify the causes of the unsatisfactory results, and a list of identified defects, their causes and measures to prevent the occurrence of defects is drawn up.

7.4.5 If a lot of bolts is found to have failed the test for threefold screwing-in and unscrewing, the manufacturer shall verify that the products released since the last check for threefold screwing-in and unscrewing are acceptable with respect to this parameter.

7.4 (Amended edition, Amendment No. 1).

7.5 Quality control of the protective coating (see 5.1.8) — per GOST 9.302.

7.6 Inspection of the applied marking (see 5.2) is performed visually, without the use of magnifying devices.

7.7 For the purposes of mandatory conformity assessment, a sample is formed from a lot that has passed acceptance tests, using the “blind” sampling method per GOST 18321-73 (subsection 3.4), with a size in accordance with GOST ISO 3269 for product grade B items. Samples for conformity assessment purposes are taken from a lot manufactured not earlier than six months before the start date of this work.

(Amended edition, Amendment No. 1).

8 Transportation and storage

8.1 Transportation of bolts without packaging is not allowed.

(Amended edition, Amendment No. 1).

8.2 At the request of the infrastructure owner/customer, bolts without a protective coating shall be subjected to preservation treatment per GOST 9.014 prior to packaging, for a period ensuring corrosion protection of not less than one year.

(Amended edition, Amendment No. 1).

8.3 Storage conditions for bolts without a protective coating - 6 per GOST 15150, for bolts with a protective coating - 8 per GOST 15150.

9 Manufacturer’s warranty

The warranty service life is not less than five years from the date of installation on the track, provided the requirements for transportation, storage, installation on the track, and operation are observed.

Section 9 (Revised edition, Amendment No. 1).