Ribbed Square Washer is a fastening element developed to dampen vibrations caused by wind loads and seismic movements in high-rise buildings. The special ribbed (grooved) texture on both surfaces of the washer creates a high friction surface between the anchor and the nut. This mechanical locking effect minimizes potential loosening over time and guarantees that the vertical profiles remain in plumb. Available in 6063-T6 aluminum or stainless steel options, it fully meets the corrosion resistance requirements of external facades.
