ICC ESR-2196 for Self-Drilling and Self-Piercing Screws

ESR-2196
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Most Widely Accepted and Trusted Page 2 of 10
4.0 DESIGN AND INSTALLATION
4.1 Design:
4.1.1 General: Screw thread length and point style must
be selected on the basis of thickness of the fastened
material and thickness of the supporting steel, respectively,
based on the maximum total thickness of the steel members
to be connected (see Figure 9) and drilling/piercing capacity
given in Table 1.
When tested for corrosion resistance in accordance with
ASTM B117, screws with coatings described in Table 1 met
the minimum requirement listed in ASTM F1941, as
required by ASTM C1513, with no white corrosion after
three hours and no red rust after 12 hours.
4.1.2 Prescriptive Design: Hilti HWH, HHWH, PPH, PTH
SD Framer, PPCH SD Framer, TPCH SD Framer and PFTH
SD Framer Screws (Sections 3.2, 3.3, 3.4 and 3.6 through
3.9) are recognized for use where ASTM C1513 screws of
the same size and type (self-drilling and/or self-piercing) are
prescribed in the IRC and in the AISI Standards referenced
in 2018, 2015 and 2012 IBC Section 2211 .
4.1.3 Engineered Design: The Hilti self-drilling and self-
piercing screws described in Sections 3.2 through 3.9, are
recognized for use in engineered connections of cold-
formed steel light-framed construction.
For the self-drilling screws, design of the connections
must comply with Section J4 of AISI S100 (Section E4 of the
2015 and 2012 IBC), using the nominal and allowable
fastener tension and shear strengths for the screws, shown
in Table 5. Allowable connection strengths for use in
Allowable Strength Design (ASD) for pull-out, pull-over, and
shear (bearing) capacity for common sheet steel
thicknesses are provided in Tables 2, 3 and 4A,
respectively, based upon calculations in accordance with
AISI S100 .
For the self-piercing screws, design of connections must
comply with Section J4 of AISI S100 (Section E4 of the 2015
and 2012 IBC), using the nominal and allowable fastener
tension and shear strengths for the screws, shown in Table
5. Allowable connection strengths for use in Allowable
Strength Design (ASD) for pull-over capacity for common
sheet steel thicknesses are provided in Table 3, based upon
calculations in accordance with AISI S100. Allowable
connection strengths for use in Allowable Strength Design
(ASD) for pull-out and shear (bearing) capacity for common
sheet steel thicknesses are provided in Tables 2 and 4B,
respectively, based upon results of testing in accordance
with AISI S905.
Instructions on how to calculate connection design
strengths for use in Load and Resistance Factor Design
(LRFD) are found in the footnotes of Tables 2, 3 and 4. For
connections subject to tension, the least of the allowable
pull-out, pullover, and tension fastener strength of screws
found in Tables 2, 3, and 5, respectively, must be used for
design. For connections subject to shear, the lesser of the
allowable shear (bearing) and fastener strength found in
Tables 4 and 5, respectively, must be used for design.
Design provisions for tapping screw connections subjected
to combined shear and tension loading are outside the
scope of this report.
For screws used in framing connections, in order for the
screws to be considered fully effective, the minimum
spacing between the fasteners and the minimum edge
distance must be three times the nominal diameter of the
screws, except when the edge is parallel to the direction of
the applied force, the minimum edge distance must be
1.5 times the nominal screw diameter. When the spacing
between screws is 2 times the fastener diameter, the
connection shear strength values in Tables 4A and 4B must
be reduced by 20 percent [Refer to Exception to Section
B1.5.1.3.2 of AISI S240 (Section D1.5 of AISI S200 for the
2015 and 2012 IBC)].
For screws used in applications other than framing
connections, the minimum spacing between the fasteners
must be three times the nominal screw diameter and the
minimum edge and end distances must be 1.5 times the
nominal screw diameter.
Connected members must be checked for rupture in
accordance with Section J6 of AISI S100 (Section E6 for the
2015 IBC; Section E5 for the 2012 IBC).
4.2 Installation:
Installation of the Hilti Self-drilling and Self-piercing Screws
must be in accordance with the manufacturer’s published
installation instructions and this report. The manufacturer’s
published installation instructions must be available at the
jobsite at all times during installation.
The screws must be installed perpendicular to the work
surface using a variable speed screw driving tool. The screw
must penetrate through the supporting steel with a minimum
of three threads protruding past the back side of the
supporting steel.
5.0 CONDITIONS OF USE
The Hilti Self-drilling and Self-piercing Screws described in
this report comply with, or are suitable alternatives to what
is specified in, those codes listed in Section 1.0 of this
report, subject to the following conditions:
5.1 Fasteners must be installed in accordance with the
manufacturer’s published installation instructions and
this report. If there is a conflict between the
manufacturer’s published installation instructions and
this report, this report governs.
5.2 The allowable loads specified in Section 4.1 are not to
be increased when the fasteners are used to resist
short term loads, such as wind or seismic forces.
5.3 The utilization of the nominal strength values contained
in this evaluation report, for the design of cold-formed
steel diaphragms, is outside the scope of this report.
Diaphragms constructed using the Hilti self-drilling or
self-piercing screws must be recognized in a current
ICC-ES evaluation report based upon the ICC-ES
Acceptance Criteria for Steel Deck Roof and Floor
Systems (AC43).
5.4 Evaluation of screws subjected to cyclic or fatigue
loading is outside the scope of this report. Applicable
Seismic Design Categories shall be determined in
accordance with the code for the entire assembly
constructed with the screws.
5.5 Drawings and calculations verifying compliance with
this report and the applicable code must be submitted
to the code official for approval. The drawings and
calculations are to be prepared by a registered design
professional when required by the statutes of the
jurisdiction in which the project is to be constructed.
5.6 The rust-inhibitive (corrosion-resistant) coating on the
screws must be suitable for the intended use, as
determined by the registered design professional.
5.7 The screws are manufactured under a quality control
program with inspections by ICC-ES.
6.0 EVIDENCE SUBMITTED
Data in accordance with the ICC-ES Acceptance Criteria for
Tapping Screw Fasteners Used in Steel-to-steel
Connections (AC118), dated January 2018.