EXPERTS IN FASTENERS AND WELDING SOLUTIONS
when everything fits
Grower washers are designed to prevent screws and nuts from loosening in assemblies subjected to vibration, impact or repeated mechanical stress. Their helical shape generates constant pressure after tightening, creating an elastic effect that stabilises the joint and reduces loss of tension with use.
At CHAVESBAO, we have Grower washers manufactured in accordance with DIN standards, available in zinc-plated and A2/A4 stainless steel to suit different levels of mechanical stress and environmental conditions. They are used in machinery, automotive, industrial equipment, metalwork and in any fastening where tightening may be compromised by movement or load variations. Their anti-loosening function makes them an essential component in numerous technical assemblies.
Grower washers DIN 127 are the classic model of helical washers. Their spiral design generates elastic pressure that increases friction between the screw head and the support surface, improving performance in assemblies with moderate vibration. They are manufactured in zinc-plated and A2/A4 stainless steel, allowing them to be used both indoors and in humid or corrosive environments.
DIN 7980 washers maintain the same operating principle but with a more rigid geometry and slightly greater thickness. This design offers more stable performance in applications with more intense vibration or repetitive load cycles, without reaching the level of demand typical of high-strength washers. They are suitable for technical assemblies that require the clamping force to be maintained in more demanding working conditions.
Grower washers are used in small and medium-scale machinery, engines, transmissions and metal assemblies, where it is necessary to prevent loosening due to vibration or small movements. Their main function is to maintain the tightening tension in components and assemblies that operate with regular movement cycles, without being high-strength structural joints.
To select the right model, it is important to assess the type of screw, the mechanical requirements and the installation environment. Zinc-plated versions are suitable for indoor use, while A2 stainless steel screws offer better performance outdoors or in damp areas, and A4 screws are recommended in marine or highly corrosive environments. In joints subjected to high loads or repeated cycles, it is essential to ensure compatibility between the washer and the screw class to guarantee stable tightening.
