Exotic Metal Fasteners Materials Grade Click Here Dimensions Click Here Weight Chart Click Here Grade Markings Click Here Download Catlog Click Here Exotic Metal Fasteners High-Performance Alloys. Resistance to Corrosion. Extreme Temperatures, High-Pressure Environments, Ensuring Durability and Reliability for Critical Applications. Click Here Hastelloy Grade Fasteners Hastelloy Grade C276, Hastelloy Grade C22 � � Click Here Super Duplex Fasteners Super Duplex 32750, Super Duplex 32760, Duplex 2205 Click Here Industries We Serve..