Specification

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ICC-ES Evaluation Report
ESR-1078
Reissued January 2018
This report is subject to renewal January 2019.
www.icc-es.org | [phone] | [phone] A Subsidiary of the International Code Council
®
DIVISION: 06 00 00—WOOD, PLASTICS AND
COMPOSITES
Section: 06 05 23—Wood, Plastic, and Composite
Fastenings
REPORT HOLDER:
OMG, INC.
153 BOWLES ROAD
AGAWAM, MASSACHUSETTS 01001-5008
[phone]
www.olyfast.com
www.fastenmaster.com
[e-mail]
ADDITIONAL LISTEE:
MITEK INDUSTRIES, INC.
14515 NORTH OUTER FORTY, SUITE 300
CHESTERFIELD, MISSOURI 63017
[phone]
www.mii.com
EVALUATION SUBJECT:
FASTENMASTER
®
LOK SERIES STRUCTURAL WOOD
SCREWS
1.0 EVALUATION SCOPE
Compliance with the following codes:
 2015, 2012, 2009 and 2006 International Building
Code
®
(IBC)
 2015, 2012, 2009 and 2006 International Residential
Code
®
(IRC)
 2013 Abu Dhabi International Building Code (ADIBC)
†
†
The ADIBC is based on the 2009 IBC. 2009 IBC code sections referenced
in this report are the same sections in the ADIBC
Properties evaluated:
 Structural
 Corrosion resistance
2.0 USES
The FastenMaster LOK Series fasteners described in this
report are alternate dowel-type threaded fasteners used for
wood-to-wood connections.
The FastenMaster LOK Series fasteners described in
Sections 3.1.1 through 3.1.4 may be used where fasteners
are required to exhibit corrosion resistance when exposed
to adverse environmental conditions and/or in
preservative-treated wood (subject to the limitations of
Section 5.2), and are alternates to hot-dip-zinc galvanized
fasteners with a coating weight in compliance with ASTM
A153, Class D. The fasteners have been evaluated for use
with wood chemically treated with waterborne alkaline
copper quaternary, type D (ACQ-D).
3.0 DESCRIPTION
3.1 General:
The LOK Series fasteners described in this report are
manufactured using a standard cold-forming process and
are heat-treated. These fasteners depart from ANSI
B18.2.1 and B18.6.1 in thread design, exceed the bending
yield strengths documented in Table 5 of American Forest
& Paper Association (AF&PA) Technical Report 12, and
are not installed with lead holes in accordance with the
ANSI/AWC National Design Specification (NDS) for Wood
Construction. The LOK Series fasteners recognized in this
report are described in Sections 3.1.1 through 3.1.5.
Product names for fasteners sold by MiTek Industries are
shown in Table 7.
3.1.1 OlyLog and TimberLOK Fasteners: The OlyLog
and TimberLOK fasteners have a
5
/
16
-inch (7.9 mm)
hex-head, rolled threads and a gimlet point. They have a
proprietary corrosion-resistant coating with a lubricious
clear top coat. See Table 1A for fastener dimensions and a
diagram.
3.1.2 HeadLOK Fasteners: The HeadLOK fasteners
have a proprietary #3 Spider-drive head, rolled threads and
a gimlet point. They have a proprietary corrosion-resistant
coating. See Table 1B for fastener dimensions and a
diagram.
3.1.3 LedgerLOK and LogHog Fasteners: The
LedgerLOK and LogHog fasteners have a
5
/
16
-inch
(7.9 mm) hex-head with integral washer, rolled threads and
a gimlet point. The LedgerLOK fasteners have a
proprietary corrosion-resistant coating with a lubricious
clear top coat. The LogHog fasteners have a proprietary
corrosion-resistant coating. See Table 1C for fastener
dimensions and a diagram.
3.1.4 TrussLOK and TrussLOK-Z Fasteners: The
TrussLOK and TrussLOK-Z fasteners have a
3
/
8
-inch
(9.5 mm) hex-head, rolled threads and proprietary cutting
points. They have a proprietary corrosion-resistant coating
with a lubricious clear top coat. See Tables 1D and 1E for
fastener dimensions and a diagram.