G/TBT/N/TUR/102  
 
10 August 2017  
(17-4316) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
  NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member : TURKEY   
If applicable, name of local government involved  (Article 3.2 and 7.2) :  
2. Agency responsible:  Ministry of Science, Industry and Tec hnology Directorate General for 
Metrology and Standardization  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification  shall be indicat ed if different from above :  
Tel: +90 312 204 89 32  
Fax: +90 312 204 86 38  
e-mail: abteknik@ekonomi.gov.tr  
3. Notified under Article 2.9.2 [X], 2.10.1 [  ], 5.6.2 [  ], 5.7.1 [  ], other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading. 
ICS numbers may be provided in addition, where applicable):  Bolt and washer sets – 
regular screw threaded and non -falling conical spring washer sets. Bolts, screws, studs 
(ICS 49.030.20)  
5. Title, number of pages  and language(s)  of the notified document:  Communiqué  on 
TS 1031 ''Bolt and Washer Sets – Regular Screw Threaded and Non -Falling Conical Spring 
Washer Sets '' (Communiqué  No: MSG - MS - 2017/) (4 page(s), in English)   
6. Description of content:   
(1) This standard covers M2.5 to M12 regular screw threaded of which strength class is 8.8 
to 10.9 (10.9 included) and bolt/screw with flat seating face and non -falling(fixed) conical, 
spring, washer -containing screw and washer assembly tolls in description, classification 
and specifications, sampling, inspection and testing, and based on market supply.  
(2) As a result of installation process of spring washers (given within the scope of 
TS 79-5), it is intended to eliminate relaxation effect i n bolted connections. These can not 
prevent actively loose connection under varying radial load and therefore usually designed 
for the purpose of using with short screw exposed to axial pressure.  
(3) Star screwdriver twisted screws, critical cross -sectional bod y not to be in threaded part 
but be in the beginning screws, is not suitable for bolt and washer sets. For restrictions in 
use of these bolts it should be viewed to the related product standard.  
(4) NOT 1 Standardized bolt/screw and washer combinations and  related symbols are 
given in TS EN ISO 10644. NOT 2 In this standard, from now on instead ''regular threaded 
and non -falling conical spring washer assembly tools '' expression purely ''non-falling 
washer bolt '' term is used.  G/TBT/N/TUR/102  
 
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  7. Objective and rationale , including the nature of urgent problems where applicable: 
The purpose of this Communiqué is to identify issues related to the implementation of the 
revision of TS 1031 (April 2017) standard.  
8. Relevant documents:  TS 1031 Standard that was publis hed in the Official Gazette 
No: 14577 and dated 27/6/1973 has been repealed.   
9. Proposed date of adoption: 7 August 2017  
Proposed date of entry into force: 5 February 2018  
10. Final date for comments:  60 days from notification  
11. Texts available from : National e nquiry point  [X] or address, telephone and fax 
number s and e mail and website address es, if available , of other body:   
Ministry of Science, Industry and Technology  
Directorate General for Metrology and Standardization  
Tel: +90 312 201 62 79  
Fax: +90 312 231  16 94  
e-mail: bulent.pektas@sanayi.gov.tr  
https://members.wto.org/crnattachments/2017/TBT/TUR/17_3559_00_e.p df