ДСТУ EN ISO 10684:2022 Кріпильні вироби. Гаряче оцинковане покриття (EN ISO 10684:2004, IDT; ISO 10684:2004, IDT)



ДСТУ EN ISO 10684:2022
(EN ISO 10684:2004, IDT; ISO 10684:2004, IDT)

Кріпильні вироби. Гаряче оцинковане покриття

 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Materials

4.1 Raw material of parts

4.2 Zinc

5 Hot dip galvanizing procedures and precautions

5.1 Stress relief

5.2 Cleaning and pickling

5.3 Baking

5.4 Fluxing

5.5 Hot dip galvanizing

5.6 Spinning and quenching

5.7 Special requirements for nuts

5.8 Post-treatment

6 Requirements on thread tolerances and additional marking

6.1 General

6.2 Requirements and precautions in assembling hot dip galvanized threaded fasteners

6.3 Special requirements for marking when supplying fasteners in sealed containers

7 Mechanical properties of nuts tapped oversize and undersize threaded bolts, screws and studs

8 Coating requirements

8.1 Appearance of zinc coating

8.2 Considerations for hot dip galvanized washers

8.3 Zinc coating thickness

8.4 Adhesion of zinc coating

9 Lubrication

10 Ordering requirements

11 Designation

Annex A (normative) Special requirements for bolts, screws and nuts with thread sizes M8 and M10

Annex B (normative) Limits of sizes for hot dip galvanized internal and external screw thread M8

Annex C (informative) Calculation of minimum ultimate tensile loads and proof loads for bolts and screws M8 and M10 with threads undersized to tolerance class 6az

Annex D (informative) Surface areas of bolts, screws and nuts

Annex E (normative) Adherence of hot-dip galvanized coating

Annex F (informative) Strength of hot dip galvanized bolt or screw and nut assemblies