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ESR-1976 I Most Widely Accepted and Trusted Page 2 of 8 <br />respectively, based upon calculations in accordance with <br />AISI S100. Instructions on how to calculate connection <br />design strengths for use in Load Resistance Factor Design <br />(LRFD) are found in the footnotes of these tables. The <br />connection strength values are applicable to connections <br />where the connected steel elements are in direct contact <br />with one another. For connections subject to tension, the <br />least of the allowable pullout, pullover, and fastener tension <br />strength found in Tables 2, 3 and 5, respectively, must be <br />used for design. For connections subject to shear, the lesser <br />of the fastener shear strength and allowable shear (bearing) <br />found in Tables 5 and 4, respectively, must be used for <br />design. Design provisions for tapping screw connections <br />subjected to combined shear and tension loading are <br />outside the scope of this report. <br />Under the 2021 IBC, for screws used in framing <br />connections, in order for the screws to be considered fully <br />effective, the minimum spacing between screws must be 3 <br />times the nominal screw diameter and the minimum edge <br />distance must be 1.5 times the nominal screw diameter. <br />Under the 2018, 2015 and 2012 IBC, for screws used in <br />framing connections, in order for the screws to be <br />considered fully effective, the minimum spacing between the <br />fasteners and the minimum edge distance must be three <br />times the nominal diameter of the screws, except when the <br />edge is parallel to the direction of the applied force, the <br />minimum edge distance must be 1.5 times the nominal <br />screw diameter. When the spacing between screws is less <br />than 3 times the nominal screw diameter, but at least 2 times <br />the nominal screw diameter, the connection shear strength <br />values in Table 4 must be reduced by 20 percent [Refer to <br />Section B1.5.1.3 of AISI S240 (Section D1.5 of AISI S200 <br />for the 2015 and 2012 IBC)]. <br />For screws used in applications other than framing <br />connections, the minimum spacing between the fasteners <br />must be three times the nominal screw diameter and the <br />minimum edge and end distance must be 1.5 times the <br />nominal screw diameter. <br />Connected members must be checked for rupture in <br />accordance with Section J6 of AISI S100 (Section E6 of AISI <br />S100 for the 2015 IBC, Section E5 of AISI S100-07/S2-10 <br />for the 2012 IBC). <br />4.2 Installation: <br />Installation of ITW Buildex TEKS° Self -drilling Fasteners <br />must be in accordance with the manufacturer's published <br />installation instructions and this report. The manufacturer's <br />published installation instructions must be available at the <br />jobsite at all times during installation. <br />The screws must be installed perpendicular to the work <br />surface, using a screw driving tool. The installation speed <br />for'/4-inch TEKS/3,1/4-inch TEKS/5, #12 TEKS/5.0 and #12 <br />TEKS/5 screws should not exceed 1,800 rpm; the <br />installation speed for all other screws should not exceed <br />2,500 rpm. The screw must penetrate through the <br />supporting steel with a minimum of three threads protruding <br />past the back side of the supporting steel. <br />5.0 CONDITIONS OF USE <br />The ITW Buildex TEKS° Self -drilling Fasteners described in <br />this report comply with, or are suitable alternatives to what <br />is specified in, those codes listed in Section 1.0 of this <br />report, subject to the following conditions: <br />5.1 Fasteners must be installed in accordance with the <br />manufacturer's published installation instructions and <br />this report. In the event of a conflict between this report <br />and the manufacturer's published installation <br />instructions, this report governs. <br />5.2 The use of the screws in engineered steel deck <br />diaphragms has not been evaluated and is outside the <br />scope of this evaluation report. <br />5.3 Evaluation of screws subjected to cyclic or fatigue <br />loading is outside the scope of this report. Applicable <br />Seismic Design Categories must be determined in <br />accordance with the code for the entire assembly <br />constructed with the screws. <br />5.4 The allowable load values (ASD) specified in Section <br />4.1 for screws or for screw connections are not <br />permitted to be increased for short -duration loads, <br />such as wind or earthquake loads. <br />5.5 Drawings and calculations verifying compliance with <br />this report and the applicable code must be submitted <br />to the code official for approval. The drawings and <br />calculations are to be prepared by a registered design <br />professional when required by the statutes of the <br />jurisdiction in which the project is to be constructed. <br />5.6 The screws are manufactured under a quality control <br />program with inspections by ICC-ES. <br />6.0 EVIDENCE SUBMITTED <br />Data in accordance with the ICC-ES Acceptance Criteria for <br />Tapping Screw Fasteners Used in Steel -to -steel <br />Connections (AC118), dated January 2018 (editorially <br />revised December 2020). <br />7.0 IDENTIFICATION <br />7.1 ITW Buildex TEKS° Self -drilling Fastener heads are <br />marked with "BX" as shown in Figures 1 through 3. <br />Each box of fasteners has a label bearing the company <br />name (ITW Buildex), fastener description (model, point <br />type_ diameter and length), lot number, and the <br />evaluation report number (ESR-1976). <br />7.2 The report holder's contact information is the following: <br />ITW BUILDEX <br />155 HARLEM AVENUE <br />GLENVIEW, ILLINOIS 60025 <br />(800) 848-5611 <br />www.itwbuildex.com <br />techs u pport(ZDitwccna.com <br />Page 25 of 29 <br />