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<h1>Strong-Wall<sup>&reg;</sup> Shearwalls: General Instructions for the Installer</h1>

  <p>These general instructions for the installer are provided to ensure proper selection and installation of Simpson Strong-Tie Company Inc. products and must be followed carefully. These general instructions are in addition to the specific installation instructions and notes provided for each particular product, all of which should be consulted prior to and during installation of Simpson Strong-Tie Company Inc. products.</p>

  <ol type="a">
    <li>All specified fasteners must be installed according to the instructions in this catalog. Incorrect fastener quantity, size, placement, type, material, or finish may cause the connection to fail. Prior to using a particular fastener, please consult the <a href="/products/connectors/wood-construction-connectors/technical-notes/fastener-types-and-sizes">Fastener Guide</a>.
    <ul><li>Larger-diameter fasteners may be substituted for smaller-diameter fasteners in connectors provided the larger fastener does not cause splitting in the wood member and the connector holes are not enlarged.</li>
      <li>Simpson Strong-Tie Strong Drive® SD Connector screws are available for use with our connectors. They are designed to replace nails in certain products. See <a href="https://www.strongtie.com/products/fastening-systems/technical-notes/sd-connector-screw-approved-connectors">strongtie.com/sd</a> for information. Screws not manufactured by Simpson Strong-Tie are not supported in our products.</li>
      <li>When using stainless-steel connectors, use stainless-steel fasteners. When using <a href="/products/connectors/wood-construction-connectors/technical-notes/corrosion-info/corrosion-resistant-wcc">ZMAX&reg;/HDG galvanized connectors</a>, use fasteners that meet the zinc coating specifications of ASTM A153 or other fasteners allowed in this catalog.</li>
    </ul></li>
    <li>Fill all fastener holes as specified in the installation instructions for that product.</li>
    <li>Do not overdrive nails. Overdriven nails reduce shear capacity.</li>
    <li>Use the materials specified in the installation instructions. Substitution of or failure to use specified materials may cause the connection to fail.</li>
    <li>Do not add fastener holes or otherwise modify Simpson Strong-Tie Company Inc. products. The performance of modified products may be substantially weakened. Simpson Strong-Tie will not warrant or guarantee the performance of such modified products.</li>
    <li>Install products in the position specified in the catalog.</li>
    <li>Do not alter installation procedures from those set forth in this catalog. Specifically, do not alter, remove or add unspecified fasteners, anchors, etc. to the wall — including the holdowns and other preinstalled hardware. Removal or alteration of these engineered features may alter the performance of the wall.</li>
    <li>Bolt holes shall be at least a minimum of 1/32" and no more than a maximum of 1⁄16" larger than the bolt diameter (per the 2018 NDS, Section 12.1.3.2 and AISI S100-16, Table J3-1 if applicable).</li>
    <li>Install all specified fasteners before loading the shearwall.</li>
    <li>Some hardened fasteners may have premature failure if exposed to moisture. These fasteners are recommended to be used in dry interior applications.</li>
    <li>Use proper safety equipment.</li>
    <li>Welding galvanized steel may produce harmful fumes; follow proper welding procedures and safety precautions. Welding should be in accordance with A.W.S. (American Welding Society) standards. Unless otherwise noted Simpson Strong-Tie connectors cannot be welded.</li>
    <li>Pneumatic or powder-actuated fasteners may deflect and injure the operator or others. Pneumatic nail tools may be used to install connectors, provided the correct quantity and type of nails (length and diameter) are properly installed in the nail holes. Tools with nail hole-locating mechanisms should be used. Follow the manufacturer’s instructions and use the appropriate safety equipment. Overdriving nails may reduce allowable loads. Contact Simpson Strong-Tie. Powder-actuated fasteners should not be used to install connectors, unless noted otherwise.</li>
    <li>For cold-formed steel applications, all screws shall be installed in accordance with the screw manufacturer’s recommendations. All screws shall penetrate and protrude through the joined materials a minimum of 3 full exposed threads per AISI Standard for Cold Formed Steel Framing &mdash; General Provisions, Section D1.3, if applicable.</li>
    <li>Nuts shall be installed such that the end of the threaded rod or bolt is at least flush with the top of the nut.</li>
    <li>To achieve tabulated values for embedded concrete/masonry products, full consolidation of concrete or grout is required.</li>
    <li>Drilling, sawing, sanding or machining wood products generates wood dust, a substance known to the State of California to cause cancer. For more information on Proposition 65, visit <a href="https://oehha.ca.gov" target="_blank">oehha.ca.gov</a>.</li>
    <li>For additional installation information, visit the Simpson Strong-Tie page at <a href="https://youtube.com/strongtie" target="_blank">youtube.com/strongtie</a>.</li>

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General instructions for the installer to ensure proper selection and installation of our Strong-Wall® products.

Strong-Wall Shearwalls — General Instructions for the Installer

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