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DIN Standards Committee Fasteners

Abstract

This document specifies grades and mechanical and physical properties of flat washers made of austenitic, ferritic and duplex steel grades, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 3506-1 and ISO 3506-2. These types of washers may also be used with other fasteners such as screws forming their own mating thread This part of ISO 3506 is applicable to the following flat captive and non captive washers made of corrosion resistant stainless steel: - plain washers (with or without knurls, ribs or chamfers); - square washers; - square hole washers; - shaped plateS

Begin

2025-05-28

WI

00185458

Planned document number

DIN EN ISO 3506-7

Project number

06702464

Responsible national committee

NA 067-00-11 AA - Washers and rings  

Responsible european committee

CEN/TC 185 - Fasteners  

Responsible international committee

ISO/TC 2/WG 13 - Washer and non-threaded fasteners  

draft standard

Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 7: Flat washers with specified grades and property classes (ISO 3506-7:2024); German and English version prEN ISO 3506-7:2025
2025-08
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