Carbon Steel Znic-Plated Hark Fin Sleeve Anchor The Hark Fin Sleeve Anchor is a type of fastener utilized for securely affixing objects to concrete or masonry surfaces.It comprises of a metallic sleeve featuring external fins and a centrally positioned threaded rod or bolt.and generally there are matching hex nut and flat washer. how to use the hark fin sleeve anchor? The Hark Fin Sleeve Anchor is installed by drilling a hole into the concrete or masonry surface, followed by inserting the anchor into the hole. The fins on the sleeve effectively prevent rotation once it is installed. To ensure a secure anchor point, a wrench or socket is utilized to tighten the nut on the threaded rod, causing expansion of the sleeve against the sides of the hole. The Hark Fin Sleeve Anchors are widely utilized in construction and industrial sectors for the purpose of securely fastening equipment, brackets, or fixtures to concrete walls or floors. They offer a rob…