FastenMaster TimberLOK User Manual

No Predrilling.
Faster, Easier, Stronger
than 3⁄8" lags.

•Stronger design shear values

than 3⁄8" lags

•

IBC/IRC code compliant.
ESR #1078

•

Sharp point and aggressive
thread penetrate the densest
woods without predrilling

•

Unique tapered head
countersinks easily into
wood for flush appearance

•

Variety of lengths, from 2
10", to match every application

•

Proprietary three-step coating
process protects against
corrosion, even in pressure
treated wood. ACQ approved

1

⁄2" to

DECKS

LANDSCAPE WALLS

•

Free bit in every package

Photographs should not be used as a reference for
fastening patterns.

RAFTER TAILS

STAIR STRINGERS

For more information or free samples,
call FastenMaster at 800

.

518.3569.

fastenmaster, 153 BOWLes rOaD, aGaWam, ma 01001 WWW.fastenmaster.COm

INSTALLATION PROCEDURE

TimberLok should be installed using a high torque, 1⁄2" variable speed drill (18V if cordless). Choose the proper
length so that threads fully engage the main member or bottom piece. Bring washer head flush to wood
surface or countersink head flush.

Guaranteed Corrosion Resistance

TimberLok is guaranteed not to rust or streak for the life of the project. The fastener has also been tested and
approved for use in ACQ. A guarantee regarding this can be found on www.FastenMaster.com. TimberLok is not
recommended for saltwater applications.

Lateral Design Values (Z) for Single Shear Connections

Loaded Perpendicular to Grain

Wood
Red Oak 0.67 299 154 184 222 140 160

Southern Pine 0.55 257 128 154 185 120 140
Doug. Fir-L, SCL* 0.50 240 118 141 170 110 130
Doug. Fir-S 0.46 226 109 131 157 100 120
Hem. Fir 0.43 215 102 122 147 100 120
E. Spruce, W. Cedar 0.36 189 87 104 126 90 100
*SCL = Structural Composite Lumber (LVL, PSL and LSL)

**Wood species indentified typically have average specific gravity similar to the values shown on this table.
All design values based on 1

TimberLok 2", Nails 10x diameter, Lags 8x diameter. Design values may be subject to adjustment factors
(section 10.3 in NDS) based on conditions existing during installation as well as those expected during
service life.

The lag screw and nail design values included in these tables are compiled directly from the 2005 National
Design Specification for Wood Construction (2005 NDS).

When using in critical applications, please consult a design professional or refer to our technical bulletins for
the proper spacing and fastening patterns.

The statement “Faster, Easier, Stronger than
values in ICC-ES Report #1078 and 3⁄8" lag screws as published in the current NDS.

For technical assistance or questions regarding proper use of this fastener, please contact FastenMaster
Technical Support at 800.518.3569 or visit www.FastenMaster.com.

Item # Screw Length Quantity per Pack

FMTLOK04-12 4" 12
FMTLOK06-12 6" 12

FMTLOK08-12 8" 12

FMTLOK10-12 10" 12

FMTLOK212-50 2.

FMTLOK04-50 4" 50

FMTLOK06-50 6" 50

FMTLOK08-50 8" 50

FMTLOK10-50 10" 50

FMTLOK212-500 2.

FMTLOK04-250 4" 250

FMTLOK06-250 6" 250

FMTLOK08-250 8" 250
FMTLOK10-250 10" 250

FMTLOKSHEET (0510)

Specific

Gravity**

1

⁄2" side member thickness and penetration into main member as follows:

FastenMaster

TimberLok

3

⁄8" lag screws” refers to the comparison of TimberLok design

1

⁄2" 50

1

⁄2" 500

Nails Lags

10D 16D 20D

1

⁄4"

PRODUCT FEATURES

HEAD STYLE

COUNTERSINKS

ITSELF DURING

INSTALLATION

3

⁄8"

MADE OF HEAT

TREATED STEEL FOR

DRAMATICALLY

INCREASED

STRENGTH AND

DRIVABILITY

ULTRA-COATED

FOR UNMATCHED

CORROSION

RESISTANCE.

ACQ APPROVED

AGRESSIVE THREAD

FOR ULTIMATE

PULL-DOWN POWER

FASTENMASTER, INC., 153 BOWLES ROAD, AGAWAM, MA 01001

800.518.3569 WWW.FASTENMASTER.COM

FastenMaster® and TimberLok® are trademarks of OMG, Inc. Copyright © 2010 OMG, Inc. All rights reserved.