Washer M30 DIN 125 A2 140 HV 31

Why A2 stainless steel? A2 material (equivalent to AISI 304) provides excellent resistance to rust and atmospheric corrosion, making this washer ideal for long-term use even in the most demanding weather conditions. A hardness of 140 HV guarantees high resistance to deformation and even distribution of clamping forces.

Compliance with DIN 125 ensures standardised dimensions and tolerances, providing full compatibility with M30 metric bolts and nuts. The washer is reusable and fits all standard M30 bolted connections.

Technical Specifications

• Standard: DIN 125 (equivalent to ISO 7089/7090)
• Size: M30
• Hole diameter (d1): 31 mm
• Material: A2 stainless steel (AISI 304)
• Hardness: 140 HV
• Type: flat washer

Applications

• Photovoltaic installations: securing mounting structures and fastening components
• Steel structures: external and internal bolted connections
• Mechanical engineering: machinery and equipment requiring corrosion resistance
• Agriculture: equipment exposed to moisture and variable weather conditions
• Construction: façade and assembly components

Function of the washer – increases the bearing surface, protects the joined material from damage, and prevents the connection from loosening. An essential component in every professional bolted assembly.