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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />E. Cast Iron: Either gray iron, ASTM A 48/A 48M, or malleable iron, ASTM A 47/A 47M, unless <br />otherwise indicated. <br />2.3 FASTENERS <br />A. General: Provide the following: <br />1. Hot -Dip Galvanized Railings: Type 304 stainless -steel or hot -dip zinc - coated steel <br />fasteners complying with ASTM A 153/A 153M or ASTM F 2329 for zinc coating. <br />B. Fasteners for Anchoring Railings to Other Construction: Select fasteners of type, grade, and <br />class required to produce connections suitable for anchoring railings to other types of <br />construction indicated and capable of withstanding design loads. <br />C. Fasteners for Interconnecting Railing Components: <br />1. Provide concealed fasteners for interconnecting railing components and for attaching <br />them to other work, unless otherwise indicated. <br />2. Provide tamper- resistant flat -head machine screws for exposed fasteners unless otherwise <br />indicated. <br />D. Post - Installed Anchors: Torque - controlled expansion anchors or chemical anchors capable of <br />sustaining, without failure, a load equal to six times the load imposed when installed in unit <br />masonry and four times the load imposed when installed in concrete, as determined by testing <br />according to ASTM E 488, conducted by a qualified independent testing agency. <br />1. Material for Exterior Locations and Where Stainless Steel is Indicated: Alloy Group 1 <br />(A1) stainless -steel bolts, ASTM F 593 (ASTM F 738M), and nuts, ASTM F 594 <br />(ASTM F 836M). <br />2.4 MISCELLANEOUS MATERIALS <br />A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy <br />welded. <br />B. Etching Cleaner for Galvanized Metal: Complying with MPI #25. <br />C. Shop Primer for Galvanized Steel: Water based galvanized metal primer complying with <br />MPI #134. <br />D. Epoxy Intermediate Coat: Complying with MPI #77 and compatible with primer and topcoat. <br />E. Polyurethane Topcoat: Complying with MPI #72 and compatible with undercoat. <br />F. Nonshrink, Nonmetallic Grout: Factory- packaged, nonstaining, noncorrosive, nongaseous grout <br />complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for <br />interior and exterior applications. <br />PIPE AND TUBE RAILINGS 055213-4 <br />