Designed for dependable fastening in demanding environments, these spring/coil square washers help maintain bolt tension and reduce the risk of loosening under vibration and dynamic loads. Manufactured from durable steel with protective finish options such as galvanised, hot-dip galvanised, zinc plated, and self-colour, they deliver strong corrosion resistance and long-lasting mechanical performance for both indoor and outdoor use.

The square spring (rectangular) washer profile supports even load distribution and helps reduce stress on fasteners and joint surfaces, improving overall joint integrity and long-term stability. Suitable for structural connections, industrial machinery, frameworks, and heavy-duty assemblies, they provide a secure, reliable fastening solution where consistent clamping force matters.

Produced to recognised DIN standards (including DIN 7980 and DIN 127B), these washers are a practical choice for engineering, construction, maintenance, and general fabrication work—helping you achieve a stable, compliant connection across a wide range of applications.