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DECK RAIL POST TO RIM BOARD

FASTENMASTER TECHNICAL BULLETIN

INSTALLATION INSTRUCTIONS

1. Choose the correct length (6-1/4" or 8") and fastening

pattern for each post to rim application based on the

illustrated conditions.

2. Mark the surface of the wood with the correct pattern.

3. If a ﬂush mounted head is required, use a 1-1/4" spade bit

to create a 1/4" deep recess in the rim or post.

4. Remove the pre-assembled ThruLOK nut from the screw and

using a 1/2" drill on low speed/high torque setting, install

the ThruLOK screw and washer into the outside face of the

application until the screw is 1/4" to 1/8" from being ﬂush.

5. Thread the ThruLOK nut onto the exposed threaded end of

the fastener. Firmly twist on the nut by hand until snug.

6. Return to driving the screw in the

remaining 1/4" to 1/8" until the

washer and nut are ﬁrmly drawn

together.

7. Make sure that the point of the

ThruLOK fastener has passed the

“MIN LINE” printed on the nut.

8. Repeat until all of the fasteners are

installed correctly according to the

speciﬁcations contained in this bulletin.

153 BOWLES ROAD, AGAWAM, MA 01001 413

789

0252 800

518

3569 WWW.FASTENMASTER.COM

Effective July 1, 2014. Please reference our website to ensure that you are using the most up to date version.

CoNNECTIoN DETAILS

According to the current International Residential Code for One and Two-Family Dwellings, Table R301.5 guardrails and

handrails must be designed to withstand a single concentrated load of 200 pounds in any direction. A critical part of

this connection is making a strong connection between the guardrail post and the rim board of the deck. In most cases,

a 1/2" through-bolt or carriage bolt is used to make this connection. When installed as instructed in this bulletin, the

ThruLOK System can replace 1/2" bolts, meeting the 200 pound design load for this part of the connection.

deck post to single rim joist deck post to doUBle rim or

single rim WitH Blocking

APPLICATIONS

FastenMaster

MIN

MIN Line

Summary of content (4 pages)

PAGE 1
FASTENMASTER TECHNICAL BULLETIN deck rail post to rim board Connection Details According to the current International Residential Code for One and Two-Family Dwellings, Table R301.5 guardrails and handrails must be designed to withstand a single concentrated load of 200 pounds in any direction. A critical part of this connection is making a strong connection between the guardrail post and the rim board of the deck. In most cases, a 1/2" through-bolt or carriage bolt is used to make this connection.
PAGE 2
FASTENMASTER TECHNICAL BULLETIN 1. CONDITION 1 – EXTERIOR MOUNTED 4X4 POST TO 2X RIM For this condition, use the 6-1/4" ThruLOK fastener 1. Install first screw 1" in from the edge of the post and 2" (+/- 1/4") from the top of the rim board 2. Install second screw 1" in from the other edge of the post and 3" (+/- 1/4") from the top of the rim board 3.
PAGE 3
FASTENMASTER TECHNICAL BULLETIN CONDITION 4 – EXTERIOR MOUNTED 4X4 POST TO DOUBLE 2X RIM For this condition, use the 8" ThruLOK fastener 1. Install first screw 1" in from the edge of the post and 2" (+/- 1/4") from the top of the rim boards 2. Install second screw 1" in from the other edge of the post and 3" (+/- 1/4") from the top of the rim boards 3.
PAGE 4
FASTENMASTER TECHNICAL BULLETIN CONDITION 7 – INTERIOR MOUNTED 4X4 POST TO 2X RIM WITH BLOCKING For this condition, use the 8" ThruLOK fastener 1. Install first screw in the center of the post and 2" (+/- 1/4") from the top of the rim board 2. Install second screw 1" in from the edge of the post and 2" (+/- 1/4") from the bottom of the rim board 3.