Mantus Anchors are designed to guarantee a set every time.Formed out of high quality steel plate. Contains no cast parts. Shank and shank boot are welded from top and bottom. Shank and roll bar are bolted to the fluke. ASTM certified steel bolts are oversized with a large margin to ensure safety. Although the shank is attached to the fluke with 4 bolts, a single bolt has sufficient strength to handle the maximum expected load on the anchor. Fluke is made from high quality 316 stainless plate, shank is made from Duplex Stainless steel to improve both strength and corosion resistance. The surface is hardened for scratch resistance and electropolished. Sharp-headed nose is precision machined to achieve the perfect chisel shape to achieve maximum penetrating power.