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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />METAL FABRICATIONS 05 50 00 - 3 <br />2.5 FASTENERS <br />A. General: Unless otherwise indicated, provide Type 316 stainless-steel fasteners for exterior use and zinc-plated <br />fasteners with coating complying with ASTM B 633, Class Fe/Zn 5, at exterior walls. Provide stainless-steel <br />fasteners for fastening aluminum. Select fasteners for type, grade, and class required. <br />B. Steel Bolts and Nuts: Regular hexagon-head bolts, ASTM A 307, Grade A; with hex nuts, ASTM A 563; and, <br />where indicated, flat washers. <br />C. Anchor Bolts: ASTM F 1554, Grade 36. <br />1. Provide hot-dip or mechanically deposited, zinc-coated anchor bolts where item being fastened is <br />indicated to be galvanized. <br />D. Eyebolts: ASTM A 489. <br />E. Machine Screws: ASME B18.6.3. <br />F. Lag Bolts: ASME B18.2.1. <br />G. Wood Screws: Flat head, ASME B18.6.1. <br />H. Plain Washers: Round, ASME B18.22.1. <br />I. Lock Washers: Helical, spring type, ASME B18.21.1. <br />J. Cast-in-Place Anchors in Concrete: Anchors capable of sustaining, without failure, a load equal to four times <br />the load imposed, as determined by testing according to ASTM E 488, conducted by a qualified independent <br />testing agency. <br />1. Threaded or wedge type; galvanized ferrous castings, either ASTM A 47/A 47M malleable iron or <br />ASTM A 27/A 27M cast steel. Provide bolts, washers, and shims as needed, hot-dip galvanized per <br />ASTM A 153/A 153M. <br />K. Expansion Anchors: Anchor bolt and sleeve assembly with capability to sustain, without failure, a load equal to <br />six times the load imposed when installed in unit masonry and four times the load imposed when installed in <br />concrete, as determined by testing according to ASTM E 488, conducted by a qualified independent testing <br />agency. <br />1. Material for Anchors in Interior Locations: Carbon-steel components zinc-plated to comply with <br />ASTM B 633, Class Fe/Zn 5. <br />2. Material for Anchors in Exterior Locations: Alloy Group [1] [2] stainless-steel bolts complying with <br />ASTM F 593 and nuts complying with ASTM F 594. <br />2.6 MISCELLANEOUS MATERIALS <br />A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. <br />B. Shop Primers: Provide primers that comply with Division 09 painting Sections. <br />C. Zinc-Rich Primer: Complying with SSPC-Paint 20 or SSPC-Paint 29 and compatible with topcoat. <br />1. Use primer with a VOC content of [420 g/L (3.5 lb/gal.)] <Insert VOC limit> or less when calculated <br />according to 40 CFR 59, Subpart D (EPA Method 24). <br />2. Products: <br />a. Benjamin Moore & Co.; Epoxy Zinc-Rich Primer CM18/19. <br />b. Carboline Company; Carbozinc 621. <br />c. ICI Devoe Coatings; Catha-Coat 313. <br />d. International Coatings Limited; Interzinc 315 Epoxy Zinc-Rich Primer. <br />e. PPG Architectural Finishes, Inc.; Aquapon Zinc-Rich Primer 97-670. <br />f. Sherwin-Williams Company (The); Corothane I GalvaPac Zinc Primer. <br />g. Tnemec Company, Inc.; Tneme-Zinc 90-97. <br />D. Galvanizing Repair Paint: High-zinc-dust-content paint for regalvanizing welds in steel, complying with SSPC- <br />Paint 20. <br />E. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with <br />ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications. <br />F. Concrete Materials and Properties: Comply with requirements in Division 03 Section "Cast-in-Place Concrete" <br />for normal-weight, air-entrained, ready-mix concrete with a minimum 28-day compressive strength of 3000 psi, <br />unless otherwise indicated. <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D