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<h1>Guidelines for Selecting Materials and Coatings (cont.)</h1>
<h2>Step 3 of 3 &mdash; Match Your Corrosion Resistance Classification to the Coatings and Materials Available</h2>
<p> Not all products are available in all finishes. <a href="https://www2.strongtie.com/contact_us.asp"
	>Contact Simpson Strong-Tie</a
  > for product availability, ordering information and lead times. </p>
<h3> Coatings and Materials Available for Connectors </h3>
<table class="table-responsive-sm">
  <thead>
	<tr>
	  <th rowspan="1" width="15%">Level of Corrosion Resistance</th>
	  <th rowspan="1" width="15%">Coating or Material</th>
	  <th colspan="4" width="70%">Description</th>
	</tr>
	<tr>
	  <th class="subheading" colspan="3">Connectors</th>
	  <th class="subheading" width="25%">Compatible Fastener/Anchor Material or Finish </th>
	</tr>
  </thead>
  <tr>
	<td rowspan="3">Low</td>
	<td>Gray or Black Paint</td>
	<td> Organic paint intended to protect the product while it is warehoused and
	  in transit to <span>the jobsite.</span></td>
	<td rowspan="3"> Bright, Hot-Dip Galvanized, Mechanically Galvanized, or Double-Barrier
	  Coating </td>
  </tr>
  <tr>
	<td>Powder Coating</td>
	<td>Baked-on paint finish that is more durable than standard paint.</td>
  </tr>
  <tr>
	<td>Galvanized</td>
	<td> Standard (G90) zinc-galvanized coating containing 0.90 oz. of zinc per
	  square foot of surface area (per ASTM A653) total for both sides. </td>
  </tr>
  <tr>
	<td rowspan="2">Medium</td>
	<td><img
		alt="ZMAX G185"
		src="https://embed.widencdn.net/img/ssttoolbox/3fulubhxol/exact/zmax-2008.jpeg"
	  /></td>
	<td> Galvanized (G185) 1.85 oz. of zinc per square foot of surface area
	  (hot-dip galvanized per ASTM A653) total for both sides. Products with a
	  powder-coat finish over a ZMAX&reg; base have the same level of corrosion
	  resistance. </td>
	<td rowspan="2"> Hot-Dip Galvanized, Mechanically Galvanized, or Double-Barrier Coating <br />
	  <br />
	  * Bright fasteners may be used with ZMAX or HDG Connectors where low
	  corrosion resistance is allowed. </td>
  </tr>
  <tr>
	<td><img
		alt="Hot Dip HDG Galvanized"
		src="https://embed.widencdn.net/img/ssttoolbox/yye3didb7a/exact/hdg-2008.jpeg"
	  /></td>
	<td> Products are hot-dip galvanized after fabrication (14 ga. and thicker).
	  The coating weight increases with material thickness. The minimum average
	  coating weight is 2.0 oz./ft.<sup>2</sup> (per ASTM A123) total for both
	  sides. Anchor bolts are hot-dip galvanized per <span>ASTM F2329.</span></td>
  </tr>
  <tr>
	<td>High/Severe</td>
	<td><img
		width="75"
		alt="Type 316L Stainless Steel"
		src="http://embed.widencdn.net/img/ssttoolbox/1snugal87o/exact/316-ss.jpeg"
	  /> <br />
	  Type 316 Stainless Steel </td>
	<td> Type 316 stainless steel is a nickel-chromium austenitic grade of
	  stainless steel with <span>2&ndash;3%</span> molybdenum. Type 316
	  stainless steel is not hardened by heat treatment and is inherently
	  nonmagnetic. It provides a level of corrosion protection suitable for
	  severe environments, especially environments with chlorides. </td>
	<td>Type 316 Stainless Steel</td>
  </tr>
</table>


<div class="row">
  <div class="col-md-4">
	<h4>Dry Service</h4>
	<img
	  alt="Quik Drive System Components"
	  src="https://ssttoolbox.widen.net/content/l21kavohx4/jpeg/C_Stock_SitPho_Pho_Stock_Getty-brxbxp63378-WoodFramingHouseInterior_C0.jpg?crop=true&keep=c&q=80&w=500&h=500"
	/> </div>
  
  
  <div class="col-md-4">
	<h4>Wet Service</h4>
	<img
	  alt="Wet Service"
	  src="https://ssttoolbox.widen.net/content/e43b8fzarr/jpeg/Reddeck(flowers).jpg?crop=true&keep=c&q=80&w=500&h=500"
	/> </div>
  
  
  <div class="col-md-4">
	<h4>Elevated Service/Severe</h4>
	<img
	  alt="Elevated Service/Severe"
	  src="https://ssttoolbox.widen.net/content/sd5qffiavc/jpeg/QD%20DockFastn_r.jpg?crop=true&keep=n&q=80&w=500&h=500"
	/> </div>
   
</div>
 


<h3> Coatings and Materials Available for Fasteners</h3>
<table class="table-responsive-sm">
  <thead>
	<tr>
	  <th class="subheading" width="15%">Level of Corrosion Resistance</th>
	  <th class="subheading" width="15%">Coating or Material</th>
	  <th class="subheading" colspan="3" width="70%">Description</th>
	<tr>
	  <th class="subheading" colspan="3">Fasteners</th>
	  <th class="subheading" width="25%">Applicable Products</th>
	</tr>
  </thead>
  <tr>
	<td rowspan="3">Low</td>
	<td>Bright</td>
	<td>No surface coating.</td>
	<td>Nails</td>
  </tr>
  <tr>
	<td> Electrocoating<br />
	  (E-Coat) </td>
	<td> Electrocoating utilizes electrical current to deposit the coating material
	  on the fastener. After application, the coating is cured in an oven.
	  Electrocoating provides a minimum amount of corrosion protection and is
	  recommended for dry, low-corrosive applications. </td>
	<td>Strong-Drive&reg; <br>
	  SDWF FLOOR-TO-FLOOR, SDW&trade; TRUSS-PLY, <br>
	  SDW EWP-PLY and <br>
	  SDWV SOLE-TO-RIM Screws</td>
  </tr>
  <tr>
	<td>Clear, Yellow and Bright-Blue Zinc</td>
	<td> Zinc coatings applied by electrogalvanizing processes to fasteners that
	  are used in dry service and with no environmental or material corrosion
	  hazard. </td>
	<td>Strong-Drive<br>
	  SDCF TIMBER-CF Screw<br>
	  SDHR COMBO-HEAD Screw<br>
	  SD8 Wafer Head Screw </td>
  </tr>
  <tr>
	<td rowspan="5">Medium</td>
	<td>Zinc Plating with Baked-On Ceramic Coating</td>
	<td> A baked ceramic barrier coating applied over top of electroplated zinc
	  provides increased protection in mildly corrosive environments. </td>
	<td>Titen Turbo&trade; Concrete and Masonry Screw</td>
  </tr>
  <tr>
	<td><img
		alt="Hot Dip HDG Galvanized"
		src="https://embed.widencdn.net/img/ssttoolbox/yye3didb7a/exact/hdg-2008.jpeg"
	  /> <br />
	  ASTM A153, Class D </td>
	<td> Hot-dip galvanized fasteners 3/8" and smaller in diameter in accordance
	  with ASTM A153, Class D. Hot-dip galvanized fasteners are compliant with
	  the 2015, 2018 and 2021 IRC&reg; and IBC&reg;. </td>
	<td>Strong-Drive <br>
	  SCN Connector Nail</td>
  </tr>
  <tr>
	<td>Type 410 Stainless Steel with Protective Top Coat</td>
	<td> Carbon martensitic grade of stainless steel that is inherently magnetic,
	  with an added protective top coat. This material can be used in mild
	  atmospheres and many mild chemical environments. </td>
	<td>Titen&reg; Stainless-Steel Concrete and Masonry Screw</td>
  </tr>
  <tr>
	<td> Mechanically<br />
	  Galvanized Coating,<br />
	  ASTM B695 </td>
	<td> Simpson Strong-Tie Strong-Drive SD Connector screws are manufactured with a mechanically applied zinc coating in accordance with ASTM B695, Class 
	  55, with a supplemental overcoat. Titen HD&reg; Mechanically Galvanized anchors comply with ASTM B695, Class 65. These fasteners are compatible with painted and zinc-coated (G90 and ZMAX®) Connectors and are recognized in evaluation reports that can be found on strongtie.com. </td>
	<td>Strong-Drive SD Connector Screw<br>
	  Titen HD Mechanically Galvanized</td>
  </tr>
  <tr>
	<td>Double-Barrier Coating</td>
	<td> Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screws and Outdoor Accents&reg; structural wood screws are manufactured with double-barrier coating that provides a level of corrosion protection equaling that provided by HDG coating and are recognized in evaluation reports that can be found on 
	  strongtie.com. </td>
	<td> Strong-Drive SDS <br>
	  HEAVY-DUTY CONNECTOR Screw <br>
	  <br>
	  Outdoor Accents <br>
	  Connector Screw and <br>
	  Structural Wood Screw </td>
  </tr>
  <tr>
	<td rowspan="2">High/Severe</td>
	<td><img
		alt="Hot Dip HDG Galvanized"
		src="https://embed.widencdn.net/img/ssttoolbox/yye3didb7a/exact/hdg-2008.jpeg"
	  /> <br />
	  ASTM A153, Class C </td>
	<td> Simpson Strong-Tie Strong-Drive Timber-Hex screws are hot-dip galvanized
	  in accordance with ASTM A153, Class C. These hot-dip galvanized fasteners
	  have a minimum average of <span>1.25 oz./ft.<sup>2</sup></span> of zinc coating and are compliant
	  with  the 2015, 2018 and 2021 IRC  (R317.3) and IBC. </td>
	<td>Strong-Drive Timber-Hex HDG Screw</td>
  </tr>
  <tr>
	<td><img
		width="75"
		alt="Type 316L Stainless Steel"
		src="http://embed.widencdn.net/img/ssttoolbox/1snugal87o/exact/316-ss.jpeg"
	  /> <br />
	  Type 316 Stainless Steel </td>
	<td> Type 316 stainless steel is a nickel-chromium austenitic grade of
	  stainless steel with <span>2&ndash;3%</span> molybdenum. It provides a level of corrosion
	  protection suitable for severe environments, especially environments with
	  chlorides. Type 316 stainless steel fasteners are compliant with the 2015,
	  2018 and 2021 IRC and IBC. </td>
	<td> Strong-Drive<br>
	  SCNR&trade; Connector Nail<br />
	  <br />
	  Strong-Drive SDS Heavy-Duty Connector Screw <br />
	  <br />
	  Strong-Drive SD <br>
	  Connector SS Screw <br>
	  Strong-Drive SDWS&trade; <br>
	  TIMBER SS Screw </td>
  </tr>
</table>

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A guide to help match corrosion resistance classifications to the coatings and materials available for our wood construction connectors and fasteners.

Guidelines for Selecting Materials & Coatings

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