Metric Spring Washers Square Section Din 7980 BZP
Metric Spring Washers Square Section Din 7980 BZP - is backordered and will ship as soon as it is back in stock.
Metric Spring Washers Square Section Din 7980 BZP - is backordered and will ship as soon as it is back in stock.
Stockist
Ensure firm and reliable fastening for your indoor and general engineering projects with our Metric DIN 7980 Spring Washers. Manufactured from durable spring steel and finished with a Bright Zinc Plating (BZP), these washers feature a specialized square cross-section. They are designed to provide effective locking tension and vibration resistance for bolted joints, offering an economical yet robust solution for everyday construction and machinery applications.
Reliable Locking for General Assembly
When cost-effectiveness and performance must go hand-in-hand, the Mild Steel BZP DIN 7980 Spring Washer is the industry standard choice. Fasteners in machinery, furniture, and general construction are constantly subjected to small vibrations that can lead to significant loosening over time. This washer is engineered to counteract those forces. By utilizing high-quality spring steel, it provides a tough, resilient locking mechanism that secures your assemblies without the higher price tag of stainless steel, making it perfect for high-volume indoor applications.
The Advantage of the Square Profile
Standard flat washers distribute load, but they do little to lock a fastener in place. The DIN 7980 is different; it features a specific square cross-section wire coiled into a split ring. When tightened, this square profile exerts a strong axial force against both the bolt head and the workpiece. This continuous spring pressure absorbs shock and compensates for the natural "bedding in" of materials. Additionally, the sharp split ends of the square wire dig into the mating surfaces, creating mechanical friction that physically resists the rotation required for a nut to back off.
Bright Zinc Plating for Protection
While raw steel is strong, it is vulnerable to rust. These washers are treated with a Bright Zinc Plating (BZP), a passivation process that gives the hardware a shiny, clean aesthetic and a layer of protection. This zinc layer acts as a sacrificial anode—meaning if the washer is scratched, the zinc will corrode before the steel beneath it does. This makes these washers ideal for indoor environments, dry warehousing, automotive interiors, and general joinery where they will not be exposed to harsh weather or constant moisture.
-
Colour
-
Sold in
Product Details
-
Key Features
-
Whats in the box?
-
Metric Spring Washers Square Section Din 7980 BZP
Frequently Asked Questions
What is the main difference between BZP and Stainless Steel washers?
What is the main difference between BZP and Stainless Steel washers?
The main difference is corrosion resistance and cost. BZP (Mild Steel) is cost-effective and strong but only offers moderate rust protection suitable for indoors. Stainless Steel (A2) is much more resistant to rust and suitable for outdoors but is generally more expensive.
Can I use these BZP washers outside?
Can I use these BZP washers outside?
We generally advise against using BZP outdoors for long periods. While the zinc plating provides temporary protection, constant exposure to rain and moisture will eventually cause the zinc to wear away and the steel to rust. For outdoor projects, stick to A2 or A4 Stainless Steel.
Why use a square section washer instead of a flat washer?
Why use a square section washer instead of a flat washer?
A flat washer spreads the load to protect the surface but does not lock the bolt. A square section spring washer (DIN 7980) is a "lock washer"—it uses spring tension to prevent the bolt from vibrating loose. You would use this when joint security is the priority.
