Form C Washers in zinc finish are heavy-duty flat washers designed to provide increased load distribution and enhanced protection for bolted joints. Manufactured in accordance with BS4320, these washers feature a larger outside diameter than standard flat washers, making them ideal for use with oversized or slotted holes and softer materials. The zinc coating offers reliable corrosion resistance for general indoor and light outdoor applications, while the silver appearance delivers a clean, professional finish. Suitable for structural, engineering, and construction uses where strength and durability are essential.