Technical Specifications

52
Holdowns
© 2015 MiTek. All rights reserved.
HTT Tension Ties
Secures multi-ply studs or posts to mudsills or foundation. Nail
fastening makes for a convenient connection to studs or posts in
cramped retrot installations.
Materials: See chart
Finish: G90 galvanizing
Codes: See page 11 for Code Reference Key Chart
Installation:
• Use all specied fasteners to attach the strap portion of the
connector to the side of stud, post, joist, purlin, or beam. Secure
the base to the concrete or masonry wall with specied anchor
bolt. A design professional shall specify the type, length, and
embedment of the anchor bolt.
• HTT45 Max – Fill all round and diamond nail holes.
• Washers are not required on transfer plates that t over the
anchor bolt.
• Tighten anchor bolt nuts nger tight snug to base plus, 1/3 to 1/2
additional turns with a 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.
• HTT4 & HTT5 — eld bending is not required provided minimum
fastener edge distance of 3/8" is maintained.
• LL930 LumberLok screws are included with HTT5KT.
HTT16
HTT4
(HTT5 similar)
Typical HTT4
installation
(HTT5 Similar)
HTT45
Typical HTT45
installation
Typical HTT16
installation
Ref. No. Strap Plate W L D CL Qty Dia. Qty Type 160% Δ (in)
4,5
10d x 1-1/2 2715 0.095
10d 3295 0.098
16d x 2-1/2 4465 0.143
10d x 1-1/2 3225 0.088
10d 4745 0.122
16d x 2-1/2 5430 0.141
HTT5KT
6
HTT5KT 12 -- -- 3 13-15/16 2-3/4 1-3/8 1-3/4 1 5/8 28 LL930 6000 0.079 130
HTT16 -- -- 10 -- -- 2-1/2 15-5/8 2 1-3/8 1-3/4 1 5/8 18 10d 3610 1.142
10d 0.095
16d x 2-1/2 0.108
10d 0.138
16d x 2-1/2 0.101
1
)
Allowable loads have been increased 60% for wind or seismic loads; no further increase shall be
p
ermitted.
2
)
16d sinkers ma
y
be substituted for the s
p
ecified 10d common nails with no load reduction.
3
)
The desi
g
ner must s
p
ecif
y
anchor bolt t
yp
e, len
g
th and embedment de
p
th.
4
)
Deflections are derived from static, monotonic load tests of devices connected to DF wood members with s
p
ecified fasteners.
5
)
HTT holdowns raised off of the sill
p
late ma
y
have hi
g
her deflection values.
6
)
HTT5KT is sold as a kit and includes
(
1
)
HTT5 and
(
28
)
LL930 screws.
7
)
LL930 LumberLok Screws are #9 x 2-7/8" lon
g
.
8
)
NAILS: 10d x 1-1/2" nails are 0.148" dia. x 1-1/2" lon
g
, 10d nails are 0.148" dia. x 3" lon
g
, 16d x 2-1/2" nails are 0.162" dia. x 2-1/2" lon
g
.
New
p
roducts or u
p
dated
p
roduct information are desi
g
nated in blue font.
USP
Stock No.
12 HTT4 -- --
HTT5 -- --
HTT45 (Min)
HTT45 (Max) 5005
Code
Ref.
5/8
5/81-3/8 1
1-3/4
1-3/4
1-3/82-3/4
2-3/4
1-3/810
12
Nail
Spacing
Dimensions (in)
HTT4,
HTT5
3 13-15/16
10-7/16
1-3/4 -- -- 2-1/2 16 2
3
Steel
Gauge
-- --
-- --
5/8
4160
30,
F31,
R16
F14
Anchor
Bolt
3
Strap
2,3,7,8
20
28
18
26
DF/SP
Allowable Tension
Loads (Lbs.)
1
Fastener Schedule
1
1
W
W
W
L
L
D
Standard round
nail holes for
minimum nailing
Additional
diamond holes
for maximum
nailing
D
D
CL
CL
CL
L
Holdowns