Flat Washers BZP 4mm | Light Duty | Qty 500
Inner Diameter: 4mm
Outer Diameter 9mm
Light Pattern Steel Construction
Light Gauge Metric Washers
Bright Zinc Plated (BZP) CR3+
Form A - Metric Washers
Specification: DIN 125A
Quantity: Pack of 500
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Light Duty Flat Washers:
These light duty metric flat washers are intended for general use under a bolt head or nut face in order to deliver an optimal smooth bearing surface and to evenly distribute the fastener load over a wider surface area. The are constructed from steel and are Bright Zinc Plated to provide protection from corrosion - making them suitable for outdoor use.
Galvanic Corrosion Protection:
These light gauge flat washers are bright zinc plated. This BZP coat plays a crucial role in providing protection against galvanic corrosion. The BZP layer provides an a level of insulation that physically separates steel screws/ nuts from aluminium surfaces.
Bimetallic Corrosion, (also kinown as Galvanic Corrosion), is an electrochemical degradation process that sees one metal corrode rapidly when it is in electrical contact with another in the presence of an electrolyte. BZP is essential when working outdoors in the British climate.
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