A flat washer is a fundamental hardware component used to evenly distribute the clamping load of a screw or nut over a larger surface. In the underwater context, it is primarily employed in the assembly of plate-and-wing systems to ensure the stability and integrity of the materials.
Key Features:
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Material: Made of AISI 316 Stainless Steel (marine grade). This alloy is specifically chosen for its ability to resist corrosion in high-salinity environments, preventing oxidation and ensuring that components remain dismountable over time.
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Protective Function: Acts as a barrier between the bolt head (or nut) and the plate (backplate). It prevents rotation during tightening from scratching the steel or aluminum of the plate and, more importantly, protects the fabric of the wing (BCD) from deformation or tearing caused by excessive localized pressure.
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Load Distribution: By increasing the contact surface, it allows the necessary tightening torque to be applied to securely fasten twin cylinders or single tank adapters (STAs) without damaging the underlying components.
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Compatibility: Designed to pair with standard underwater fasteners (typically M8 threads), making it universal for most technical and recreational configurations.
Common Applications:
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BCD Assembly: Inserted between the nut (blind or self-locking) and the plate when securing the cylinder assembly.
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Accessory Mounting: Used to securely attach pockets, light brackets, or adapters, ensuring that the attachment is solid and durable.
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Standard Configurations: A basic element for any maintenance or modification of technical harnesses.
