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Helical spring lock washers are the most common washers used to prevent components from loosening.
When compressed, the lock washer will twist and flatten. This prevents loosening.
A4 stainless steel is functionally equivalent to 316 grade and is also known as "marine grade".
Stainless steel significantly improves resistance to tarnishing or corrosion.
Diameter (Nominal): M16 Diameter (Dimension): 16mm Inside Diameter (Nominal): 16.2mm Outside Diameter (Nominal): 24.4mm Thickness (Nominal): 3.5mm Product Class: Washers Order: Lock Washers Category: Helical Spring Lock Washers System of Measurement: Metric Brand: Aspen Fasteners® Form and Design: High Collar Material: Stainless Steel Material Grade: A4 Stainless Steel Coating: Uncoated Standards and Specifications: DIN 7980 A note on our product images: The copyrighted images are schematic representations. These are artistic renderings which may not reflect the exact appearance, proportions and/or relative dimensions of the actual products. For more precise imagery and/or technical references, please contact our customer support team.