1. ICC-ES Evaluation Report ESR-2023
Reissued October 1, 2010
This report is subject to re-examination in two years.
www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council ®
DIVISION: 05 00 00—METALS 3.2.2 Cold-formed Steel Structural Members: The
Section: 05 05 23—Metal Fastenings steel structural members shall be cold-formed from
galvanized steel complying with ASTM A653 SS Grade 50,
REPORT HOLDER: Class 1, and having uncoated base-metal thicknesses of
0.033, 0.043, 0.054 and 0.068 inch (0.84, 1.09, 1.378 and
HENROB CORPORATION 1.73 mm) as noted in Tables 1 and 2. The steel must have
35455 VERONICA a G60 galvanization coating designation.
LIVONIA, MICHIGAN 48150
4.0 DESIGN AND INSTALLATION
(734) 521-3000
www.henrob.com 4.1 Design:
mlapensee@henrob.com
The nominal shear and tension strength of connections
with the rivets connecting two cold-formed steel members
EVALUATION SUBJECT:
together are shown in Tables 1 and 2. The steel used in
the connection must have the uncoated base-metal
HENROB SELF-PIERCING RIVETS
thickness noted in Section 3.2.2. Interpolation or
extrapolation of values is outside the scope of this
1.0 EVALUATION SCOPE
evaluation report. For allowable strength design (ASD), the
Compliance with the following code: tabulated nominal values must be divided by a safety
® factor, Ω, of 3.1 to derive the allowable shear and tensile
2006 International Building Code loads. For use in load and resistance factor design (LRFD),
Property evaluated: the design strength must be the tabulated nominal values
multiplied by a resistance factor, φ, of 0.52.
Structural
The spacing between rivets must be such that there is a
2.0 USES minimum distance between the centerline of the rivets of
The Henrob self-piercing rivets described in this report are three times the diameter of the rivet prior to the rivet
used for factory-fabricated connections of cold-formed installation. The distance from the rivet centerline to the
steel members. The riveted connections are used to resist edge of any steel part must be a minimum of 1.5 times the
shear and tension loads. rivet diameter. If the end distance is parallel to the force on
the rivet, the shear strength of the connection, per rivet,
3.0 DESCRIPTION shall be limited by Section E4.3.2 of the 2001 AISI North
3.1 General: American Specification for the Design of the Cold-formed
Steel Structural Members, with 2004 Supplement.
The Henrob rivets have a pan head or countersunk head
with a hollow end opposite the headed end. The pan head 4.2 Installation:
rivets are available with model designations of DT, DW and 4.2.1 General: Installation must be in accordance with
DY with shank lengths of 5, 6, and 7 mm (0.197, 0.236 and this report and the manufacturer’s published installation
0.276 inch), respectively. The countersunk head rivets instructions.
have model designations of DS, DV and DX, which have
overall lengths of 5.0, 6.5 and 7.5 mm (0.197, 0.256 and The Henrob self-piercing rivets are installed with
0.295 inch), respectively. All rivets have a head diameter of hydraulically actuated rivet setting tools that drive the rivet,
7.75 mm (0.305 inch). The DT and DS rivets have a 5.30- without predrilling holes, into the stacked steel members
millimeter (0.209 inch) shank diameter. The DW, DY, DV with a die, specific to the rivet size and type, located on the
and DX rivets have a 5.15-millimeter (0.203 inch) shank opposite face of the connection. See Table 3 for
diameter. See Figure 1 for detail. designation of the dies. The driven end of the rivet
penetrates the top layer of steel and flares the bottom layer
3.2 Material: of steel to the shape of the die. See Figure 2.
3.2.1 Rivets: The rivets are manufactured from carbon 4.2.2 Rivet Installers: The connections must be
steel wire, are heat-treated, and have a mechanically fabricated at facilities operated by the holder of an ICC-ES
deposited zinc coating in accordance with specifications in evaluation report on a product or system using the rivets,
the approved quality documentation. or by fabricators accredited by the International
ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed
as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as
to any finding or other matter in this report, or as to any product covered by the report.
Copyright © 2010 Page 1 of 6

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Accreditation Service (IAS) and having an IAS “FA” 5.2 It must be verified to the satisfaction of the code
number (FA-xxx). In either case, the connections must be official that the rivet coating described in Section 3.2.1
fabricated under a quality control program with inspections of this evaluation report is suitable for corrosion
by an inspection agency accredited by IAS. The approved protection of the rivet, for the installation in which the
quality documentation for the fabrication of the connections rivets are being used.
must include at least the following information:
5.3 Use of the rivets to attach steel deck panels to steel
a. Sufficient detail to demonstrate that the equipment supports to form diaphragms, or to form connections
used to fabricate the connections is consistent with of steel framing members of shear walls, is outside
the equipment that was used to fabricate the the scope of this evaluation report.
specimens for the qualifying tests carried out to obtain
this evaluation report. 5.4 The connections must be fabricated at facilities
operated by an ICC-ES evaluation report holder who
b. Internal quality control testing procedures, with quality produces a recognized product or system using the
control testing performed at regular intervals to verify rivets; or by fabricators accredited by the International
acceptable performance of the ongoing production of Accreditation Service (IAS) and having an IAS “FA”
the connections fabricated with the rivets recognized number. The quality documentation of the connection
in this evaluation report. Testing must be performed in fabricator must comply with the requirements in
accordance with Section 3.0 of the ICC-ES Section 4.2.2 of this report.
Acceptance Criteria for Riveted Connections of Cold-
formed Steel Structural Members Using Self-piercing 6.0 EVIDENCE SUBMITTED
Rivets (AC344), at a frequency sufficient to maintain Data in accordance with the ICC-ES Acceptance Criteria
an in-house control process. Testing must be for Riveted Connections of Cold-formed Steel Structural
performed either in-house or by an independent Members Using Self-piercing Rivets (AC344), dated
testing laboratory. February 2006 (editorially revised January 2008).
5.0 CONDITIONS OF USE 7.0 IDENTIFICATION
The Henrob self-piercing rivets described in this report Labels on containers of rivets bear a Henrob trademark
comply with, or are suitable alternatives to what is logo (see Figure 3), rivet model designation, batch number,
specified in, the code indicated in Section 1.0 of this report, and evaluation report number (ICC-ES ESR-2023). In
subject to the following conditions: addition, the head of each rivet bears the two-letter model
designation of the rivet.
5.1 The rivets must be installed in accordance with the
Henrob published installation instructions and this
report. In the event of a conflict between this report
and the Henrob published installation instructions, the
most restrictive governs.

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1,2
TABLE 1—NOMINAL COUNTERSUNK RIVET CONNECTION STRENGTH (lb) FOR 50 ksi TOP AND BOTTOM STEEL
TOP STEEL THICKNESS (inch)
BOTTOM
STEEL
0.033 0.043 0.054 0.068
THICKNESS
(inch)
Shear Tension Shear Tension Shear Tension Shear Tension
DS RIVET
0.033 1056 531 1160 464 995 229 — —
0.043 1227 673 1370 643 1236 450 — —
0.054 1037 585 1322 739 — — — —
0.068 931 596 1200 780 — — — —
DV RIVET
0.033 — — — — 1121 482 1093 451
0.043 1324 691 1532 876 1533 712 1619 683
0.054 1017 618 1317 824 1682 1120 1760 989
0.068 975 659 1305 919 1810 1284 2055 1275
DX RIVET
0.033 — — — — — — — —
0.043 — — — — — — — —
0.054 — — — — — — 1933 1281
0.068 — — — — 1802 1284 2197 1557
For SI: 1 inch = 25.4 mm, 1 lbf = 4.45 N.
1
Steel thicknesses are uncoated base metal thicknesses, as noted in Section 3.2.2.
2
The tabulated nominal strengths must be multiplied by the factors in Section 4.1 to derive the allowable loads or design strengths.

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1,2
TABLE 2—NOMINAL PAN HEAD RIVET CONNECTION STRENGTH (lb) FOR 50 ksi TOP AND BOTTOM STEEL
TOP STEEL THICKNESS (inch)
BOTTOM
STEEL
0.033 0.043 0.054 0.068
THICKNESS
(inch)
Shear Tension Shear Tension Shear Tension Shear Tension
DT RIVET
0.033 1106 643 1294 589 1095 433 — —
0.043 1326 783 1465 793 1419 577 — —
0.054 1139 752 1476 936 — — — —
0.068 1118 833 1577 1003 — — — —
DW RIVET
0.033 — 741 1398 712 1212 505 1134 492
0.043 1398 829 1534 937 1579 706 1700 653
0.054 1236 804 1484 967 1702 1314 1913 1207
0.068 1075 848 1586 1089 1997 1351 2147 1326
DY RIVET
0.033 — — — — — — — —
0.043 — — — — — — — —
0.054 — — — — — — — —
0.068 — — — — 2007 1437 2338 1634
For SI: 1 inch = 25.4 mm, 1 lbf = 4.45 N.
1
Steel thicknesses are uncoated steel thicknesses as noted in Section 3.2.2.
2
The tabulated nominal strengths must be multiplied by the factors in Section 4.1 to derive the allowable loads or design strengths.

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TABLE 3—RIVETING TOOL AND DIE DESIGNATIONS
RIVET DESIGNATION DIE DESIGNATION RIVETING TOOL DESIGNATION
DS DZ09 —025 Henrob 50 mm DA
DT DZ09 —000 Henrob 50 mm DA
DV DG09 —200 Henrob 50 mm DA
DW DG09 —200 Henrob 50 mm DA
DX DG09 —220 Henrob 50 mm DA
DY DG09 —220 Henrob 50 mm DA
SPR = Self Piercing Rivets
FIGURE 1—TYPICAL RIVET HEAD STYLES
FIGURE 2—SEQUENTIAL FORMATION OF A TYPICAL SPR CONNECTION

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and / or
FIGURE 3—HENROB LOGO