SIPA’s range of washers is designed to enhance the quality and safety of mechanical fasteners. Indeed, washers distribute the load of screws and bolts, prevent loosening, and protect surfaces from damage, deformation, and wear over time. SIPA manufactures metal washers of varying hardness levels, in compliance with DIN, NFE, and UNI standards, to ensure dimensional consistency and compatibility for a wide range of industrial applications. Each item is available in small or larger packs, with blue and yellow zinc-plated, or plain finishes, to meet different usage and storage requirements.
SIPA DIN 440 washers are designed for use with screws and bolts to provide stable, even support on wood, metal, and composite materials. Ideal for wooden structures, they ensure proper load distribution, reduce vibration, and provide longer-lasting tightness over time.
SIPA square washers, which comply with UNI 6596 and DIN 436 standards and are made in Italy, are robust and versatile washers designed for use in heavy-duty metalwork and in wood or steel structures, but are also ideal for DIY projects. Through their large contact surface, they distribute clamping forces evenly, offering excellent stability, safety and durability over time.
This category includes a wide range of items designed by SIPA to meet specific mechanical fastening requirements. Available in multiple diameters, thicknesses and finishes, they guarantee dimensional accuracy and mechanical strength. Our metal washers are manufactured and inspected in accordance with stringent quality standards, ensuring excellent reliability and compatibility with a wide range of industrial applications.
SIPA NFE 25513 washers are manufactured in accordance with the requirements of the French NFE standard. This type of washer, made from treated, corrosion-protected metal, ensures maximum compatibility and high performance in technical and mechanical applications, especially where high accuracy is required. Designed and manufactured in Italy at our production facility, NFE washers ensure stable and uniform fastening even under heavy loads, as well as maximum reliability and durability.
SIPA convex washers are designed to compensate for misalignments and vibrations in mechanical fastening systems. Their unique shape ensures continuous contact and even load distribution, thereby enhancing the stability of the connection. Manufactured in Italy at our facility using precision machining, they deliver excellent strength, reliability, and long service life for industrial, construction, and professional applications.
SIPA's DIN 125A and DIN 9021 flat and large OD washers are your best allies for reliable mechanical fastening systems. They effectively distribute the load of screws and bolts, ensure stable tightening, and protect surfaces from deformation during use. Manufactured in our plant with different metal hardness grades, they comply with UNI, DIN, and ISO standards and guarantee dimensional accuracy, corrosion resistance, and compatibility with industrial, construction, and plant engineering applications, including DIY projects.
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SIPA provides companies and distributors with a comprehensive range of small metal parts, small plastic parts, and washers, as well as blanking, moulding, and contract manufacturing services. Contact us to learn about the products in our catalogue, the many customisation options we offer, and our machining and production services as a subcontractor.
