Penny repair washers are heavy-duty flat washers designed to spread load over a larger surface area, making them ideal for repairing oversized or damaged holes in sheet materials, timber, metal and masonry fixings. Manufactured to DIN 9054 standards, they feature a wide outer diameter relative to the hole size, helping to improve clamping force, reduce pull-through and enhance overall fixing strength. Commonly used in construction, maintenance and DIY applications, these silver-finish washers are available in a range of metric sizes and pack quantities to suit everything from small repairs to large-scale projects.