Technical Specifications

50
Holdowns
© 2015 MiTek. All rights reserved.
Ref. No. W L D CL Qty 100% 160% 100% 160%
DTB-TZ
DTT2Z,
FSC
14 1-13/16 6 2-1/4 1-1/8 1/2 8 WS15-GC 1835 1835 0.119 1510 1510
30, F31,
R16
1
)
WS15-GC Wood Screws are 1/4" dia. x 1-1/2" lon
g
and are included with DTB-TZ Deck Tie-Backs.
2
)
Deflections are derived from static, monotonic load tests of devices connected to DF wood members with s
p
ecified fasteners.
New
p
roducts or u
p
dated
p
roduct information are desi
g
nated in blue font.
Code
Ref.
USP
Stock No.
Rod /
Bolt
Anchor
Dia.
DF/SP
Allowable Tension (Lbs.)
S-P-F
Allowable Tension (Lbs.)
Δ (in)
at 160%
2
Wood
Screws
Fastener
Schedule
1
Dimensions (in)
Corrosion Finish
Steel
Gauge
Corrosion Finish
Stainless Steel Gold Coat
HDG Triple Zinc
Corrosion Finish Stainless Steel Gold Coat HDG Triple Zinc
Corrosion
Finish
Stainless Steel
Gold Coat
HDG
Triple Zinc
DTB-TZ Deck Tie Back
Holdowns
The DTB-TZ Deck Tie Back provides positive anchorage between the
deck framing and the exterior wall with a load carrying capacity that
exceeds building code requirements. When used in conjunction with
USP triple-zinc or gold-coat joist hangers, the DTB-TZ transfers the
lateral loads into the exterior wall while the joist hangers support
the vertical loads. The DTB-TZ can also be used to reinforce the
connection between the rail post and the deck.
Materials: 14 gau ge
Finish: G-185 galvanizing
Options: See chart for Corrosion Finish Options
Codes: See page 11 for Code Reference Key Chart
Installation:
• Use all specied fasteners. See Product Notes, page 17.
• Install with USP’s THR 1/2" threaded rod or equivalent.
• Drive WS15-GC wood screws into joist.
• Re-install threaded rod or anchor bolt. Secure with washer and nut.
• Tighten anchor bolt nuts nger tight, snug, to base plus 1⁄3 to 1⁄2
additional turns with wrench. To prevent loosening of the anchor
nut during critical loading, use a locking nut or tighten a second
nut over the rst to lock nuts in place.
Typical DTB-TZ
installation
Typical DTB-TZ Deck
to ledger installation
1/2" THR
Threaded
Rod pg. 34
DTB-TZ
6"
2-1/4"
CL
1-13/16"