From the Ministry of Industry and Technology:  
 
COMMUNIQUÉ ON  
TS 1026 -91 “FASTENERS - HEXAGON NUTS - SECTION: 91 - WELD NUTS WITH 
METRIC COARSE AND F INE PITCH THREADS COARSE - PRODUCT GRADES A ” 
 (COMMUNIQUÉ NO: MSG - MS - 2018/   ) 
 
Purpose   
ARTICLE 1 – (1) The purpose of this Communiqué is to identify issues related to the 
implementation of the revision  of TS 1026 -91“Fasteners - Hexagon Nuts - Section: 91 - weld 
nuts with metric coarse and fine pitch threads Coarse - Product Grades’’  (December 2017 ) 
standard.  
 
Scope of this standard    
ARTICLE 2 – (1) This standard covers hexagon   nuts whose product quality is A , used 
in welded nuts from M3 to M16  in nominal sizes with  metric  coarse threads  and from M8 to 
M16 in nominal sizes with metric fine pitch threads in description, classification and 
specifications, sampling, inspection and testing, and  based on market supply.  
(2) Nuts welded and used in accordance with this standard are suitable for conne ction 
with bolts with strength class less than 8.8 according to TS EN ISO 898 -1. 
            (3) This standard does not cover flanged hex ogonal  nuts which are welded to the parts 
specified in TS EN ISO 21670.  
             (4) In this standard, only “nuts” term is used instead  of the expression of   " hexagon  
nuts whose product grade is A , with metric  coarse and fine pitch , , used in welded nuts  ". 
         Legal Basis  
ARTICLE 3 – (1) This   Communiqué; has   been drawn up based on the Presidential 
Decree Law No 1 .on Organization of the Presidency published in the Official Journal 
numbered 30474 and   dated 10/7/2018, Law No. 1705    on the Prevention of Adulteration in 
Trade and Supervision and Protection of Exports dated 10/6/1930, Presidential Decree No 4  on 
the Organization of Affiliated, Related, Associated Institutions and Institutions and Other 
Institutions and Organizations which are affiliated to Ministries published in the Official 
Journal numbered 30479 and dated 10/7/2018 and Regulation on Mutual Recognition in Non -
regulated Areas that was put into force with the Decision No. 2012/3169   of the Council of 
Ministers dated 2/5/2012.  
          Putting into Effect  
  ARTICLE 4 – (1) TS 1026 -91 “Fasteners - Hexagon Nuts - Section: 91 - weld nuts 
with metric coarse and fine pitch threads Coarse - Product Gr ades A ” is cancel ed. Instead, TS 
1029 -91  “ Fasteners - Hexagon Nuts - Section: 91 - weld nuts with metric coarse and fine pitch 
threads Coarse - Product Gr ades A ” (December 2017 ) prepared for revision by Turkish 
Standards Institution (TSE) Technical Committee of Manufacturing Machines and Tolls and 
was adopted and decided to be published in the meeting of Technical Board of Turkish 
Standards Institution (TSE) dated 18/12/2017 has been put into effect as mandatory in 
manufacturing and sales stages.  
Compliance Obligation  
ARTICLE 5 – (1) Those who produce and sell products within  on the market  the scope 
of TS 1026 -91 “Fasteners - Hexagon Nuts - Section: 91 - weld nuts with metric coarse and fine  pitch threads Coarse - Product Grades’’  (December 2017 ) Standard shall be obliged to comply 
with the provisions of this Communiqué.  
 
Mutual Recognition Clause  
ARTICLE 6 – (1)  The provisions of this Communiqué on ‘‘ TS 1026 -91   “ Fasteners - 
Hexagon Nuts - Section: 91 - weld nuts with metric coarse and fine pitch threads Coarse - 
Product Gr ades’’ (December 2017 )  shall not apply to the products which were legally produced 
or put into free circulation in a Member State of the European Union.  
(2) Nonetheless, the Ministry of Industry and Technology may submit the product 
referred to in paragraph (1) to an evaluation  following the rules and procedures laid down in 
Chapter Three of Regulation on Mutual Recognition in Non -Harmonised Area and as a result 
of this evaluation if it finds out that this product does not provide a level of protection equivalent 
to that  sought by this Communiqué on TS 1026 -91(December 2017)    “Fasteners - Hexagon 
Nuts - Section: 91 - weld nuts with metric coarse and fine pitch threads Coarse - Product 
Grades’’ it may prohibit placing on the market of the product, make its placing on the market 
subject to prior conditions or have the product withdrawn or recalled from the market.  
Provision  
ARTICLE 7 – (1) TS 1026 -91 “Fasteners - Hexagon Nuts - Section: 91 - weld nuts 
with metric coarse and fine pitch threads Coarse - Product Gr ades (December 2017 ) Standard 
shall be obtained from the central organization or provincial representative offices of TSE. 
Contact informatio n can be accessed from the website of the TSE.  
Repeal  
ARTICLE 8 – (1) TS 1026 -91 “Fasteners - Hexagon Nuts - Section: 91 - weld nuts 
with metric coarse and fine pitch threads Coarse - Product Gr ades (December 2017 ) Standard 
which was put into effect as mandatory with the Mandatory Standard Communiqué 
(Communiqué No: Mandatory Standard - MSG -MS.96/125 -126) that was publis hed in the 
Official Gazette No: 22837  and dated 04/12/1996 has been repealed.  
Entry into Force  
ARTICLE 9 – (1) This Communi qué shall enter into force six  months after its 
publication.  
Enforcement  
ARTICLE 10 – (1) The provisions of this Communiqué shall  be enforced by the 
Minister of Industry and Technology.