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Engineered Wood & Structural Composite Lumber Connectors
TOP FLANGE HANGERS ITS/MIT/HIT Engineered Wood Products Hangers
This product is preferable to similar connectors because of
a) easier installation, b) higher loads, c) lower installed cost,
or a combination of these features.
Funnel Flange
2"
Supports 11⁄8" to 11⁄2"
thick flanges
ITS
U.S.
Patents
6,523,321
and
6,250,827
W
Typical ITS
Installed on LVL
The Strong-Grip™ seat
secures I-joists in position
without joist nails
21⁄2"
nal
Optioil
Na ns
io
t
Loca
MIT
Typical MIT Installed
on a Double LVL
3"
T
(3" MF
ax.)
Optional
Joist Nail
Location
for Uplift
HIT
118
HIT Installation
on a 3x Nailer mounted
on a Steel Beam
(ITS, MIT similar)
C-C-2015 © 2015 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/14
Simpson Strong-Tie offers a dedicated range of top flange
I-joist hangers that meet the unique needs of I-joists while offering superior
performance and ease of installation.
ITS
The innovative ITS sets the standard for engineered wood top
flange hangers. The ITS installs faster and uses fewer nails than any other
EWP top flange hanger. The new Strong-Grip™ seat and Funnel Flange™
features allow standard joist installation without requiring joist nails
resulting in the lowest installed cost. The Strong-Grip seat firmly
secures I-joists with flange thicknesses from 1 1⁄8" to 1 1⁄2".
MIT/HIT - Positive Angle Nailing (PAN)
PAN is specifically designed for I-joists when used with the MIT or HIT.
With PAN, the nail hole material is not removed, but is formed to channel
and confine the path of the nail at approximately 45°. PAN minimizes
splitting of the flanges while permitting time-saving nailing from a better
angle. See Top Flange tables on pages 124-132.
Refer to Joist Manufacturer’s literature or appropriate Simpson
Strong-Tie® Connector Selection Guide for actual joist sizes.
MATERIAL: ITS—18 gauge; MIT, HIT—16 gauge
FINISH: Galvanized
INSTALLATION:
•Use all specified fasteners. Verify that the header
can take the required fasteners specified in the table.
•See product specific installation drawings on pages 108-109.
•ITS—no joist nailing required for standard I-joist installation
without web stiffeners. When supporting I-joists with web
stiffeners or rectangular SCL member 2-10dx1 1⁄2" must be
installed into optional triangle joist nail holes for standard
installation values.
•ITS—optional triangle nail holes may be used for additional
load. See allowable load tables. Refer to technical bulletin
T-OPTUPLIFT for additional options.
•MIT—optional triangle nail holes may be used for increased
uplift capacity. See Optional Nailing For Increased Uplift table.
•HIT—closed PAN nail holes may be used for increased
uplift capacity. See Optional Nailing For Increased Uplift table.
•For sloped joists up to 1⁄4:12 there is no reduction, between
1
⁄4:12 and up to 1⁄2:12, tests show a 10% reduction in ultimate
hanger strength. Local crushing of the bottom flange or excessive
deflection may be limiting; check with joist manufacturer for
specific limitations on bearing of this type.
ALLOWABLE LOADS:
•The ITS, MIT and HIT hangers have locations for optional nails
if additional uplift is needed. Optional uplift nailing requires the
addition of properly-secured web stiffeners. See the load tables
for minimum required fasteners and allowable uplift loads.
OPTIONS:
•Because these hangers are fully die-formed, they cannot be
modified. However these models will normally accommodate a
skew of up to 5°.
CODES: See page 12 for Code Reference Key Chart.
2"
Engineered Wood & Structural Composite Lumber Connectors
17⁄16"
Engineered Wood & Structural Composite Lumber Connectors
TOP FLANGE HANGERS ITS/MIT/HIT Engineered Wood Products Hangers
ITS INSTALLATION SEQUENCE
POSITIVE ANGLE
NAILING
STEP 3
Firmly push or snap I-joist
fully into the seat of the ITS.
Correct Nailing
Approx. 45o angle
IT SERIES WITH VARIOUS HEADER APPLICATIONS
Fasteners
Model
ITS Series10
(Standard
Installation)
ITS Series7,10
(Alternate
Installation)
MIT Series10
C-C-2015 © 2015 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/14
HIT Series
Allowable Loads Header Type
Top
Face
Joist
Uplift 2,3
(160)
4-10dx1 1⁄2
4-10d
4-16d
4-10d
4-16d
4-10d
4-16d
4-10dx1 1⁄2
4-10d
4-16d
4-16d
2-10dx1 1⁄2
2-10d
2-16d
4-10d
4-16d
4-10d
4-16d
4-10dx1 1⁄2
4-10d
4-16d
6-16d
—
—
—
—
—
4-10dx1 1⁄2
4-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
105
105
105
105
105
630
630
215
215
215
315
LVL
PSL
LSL
DF/SP
SPF/HF
DF/SCL5
I-Joist
SPF/HF
I-Joist
1395
1550
1785
1735
1785
1735
1785
2035
2335
2550
2550
1245
1365
1735
1595
1735
1595
1735
1500
2000
2140
2220
1625
1780
1905
1885
1905
1885
1905
1605
1605
2115
2500
1440
1520
1635
1955
1955
1955
1955
2035
2245
2305
2875
1140
1150
1225
1230
1490
1230
1490
1115
1665
1665
2000
1085
—
—
—
—
—
—
1230
—
—
—
940
—
—
—
—
—
—
885
—
—
—
4
1.Loads may not be increased for duration of load.
2.Uplift loads are based on DF/SP lumber and have been increased for wind or earthquake
loading with no further increase allowed. Reduce where other loads govern. For SPF/HF
use 0.86 x DF/SP uplift load.
3.ITS uplift loads are valid for all lumber species and need not be reduced for
duration of load.
4.Applies to LVL headers made primarily from Douglas Fir or Southern Pine. For LVL made
primarily from Spruce Pine Fir or similar less dense veneers, use the values found in
the SPF/HF column.
5.DF I-joists include flanges made from solid sawn Douglas Fir, LVL made primarily
of Douglas Fir/Southern Pine, or LSL. For flanges with thicknesses from 1 5⁄16 to 1 3⁄8,
use 0.85 of the I-joist header load. For flanges with thicknesses from 1 1⁄8 to 1 1⁄4,
use 0.75 of the I-joist header load.
NAILER TABLE
This table indicates various allowable loads for ITS/MIT/HIT hangers
used on wood nailers. The header nail type must be substituted for those
listed in other tables. See technical bulletin T-NAILERUPLFT for other
uplift values and options.
Model
ITS
Series
MIT
Series
HIT
Series
Nailer
Top Flange
Nailing
Joist
Nailing
Uplift2
(160)
2x
2x
2-2x
2-2x
3x
3x
4x
4x
2x
2-2x
3x
4x
2-2x
3x
4x
6-10dx1 1⁄2
6-10dx1 1⁄2
6-10d
8-10d
6-16dx2 1⁄2
8-16dx2 1⁄2
6-16d
8-16d
6-10dx1 1⁄2
8-10d
8-16dx2 1⁄2
8-16d
10-10d
10-16dx2 1⁄2
10-16d
—
2-10dx1 1⁄2
—
4-10dx1 1⁄2
—
4-10dx1 1⁄2
—
4-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
2-10dx1 1⁄2
105
355
105
630
105
630
105
630
215
215
215
215
315
315
315
1.Uplift loads are based on DF/SP members only. See technical bulletin
T-NAILERUPLFT for SPF/HF values.
SPF/HF
1260
1260
1220
1530
—
—
—
—
1440
1255
—
—
—
—
—
I19, L14, F18
170
I19, L14, F18
6.SCL (structural composite lumber) is LVL, LSL, and Parallam® PSL.
7.Web stiffeners required for the ITS Alternate Installation when installing
optional joist nails for additional uplift load.
8.Code Values are based on DF/SP header species.
9.I-joists with flanges less than 1 5⁄16" thick used in combination with hangers
thinner than 14 gauge may deflect an additional 1⁄32 inch beyond the standard
1⁄8" limit.
10. For 2 1⁄4" and 2 7⁄16" wide joists, see tables on page 125 for allowable loads.
Parallam ® is a registered trademark of Weyerhaeuser.
NAILS: 16d = 0.162" dia. x 3 1⁄2" long, 16dx2 1⁄2 = 0.162" dia. x 2 1⁄2" long,
10d = 0.148" dia. x 3" long, 10dx1 1⁄2 = 0.148" dia. x 1 1⁄2" long.
See pages 22-23 for other nail sizes and information.
OPTIONAL NAILING FOR INCREASED UPLIFT
Allowable Loads
DF/SP
1260
1260
1220
1745
1500
1540
1525
1905
1475
1630
1975
2250
2595
2835
2875
Code
Ref.
Engineered Wood & Structural Composite Lumber Connectors
STEP 2
Slide the I-joist downward into the ITS
until it rests above the Strong-Grip™ seat.
STEP 1
Attach the ITS
to the header
ITS
MIT
HIT
Allowable Uplift
Loads
Fasteners
Model
Top
4-10dx1 1⁄2
Face
4-10dx1 1⁄2
Joist
4-10dx1 1⁄2
(160)
630
4-10d
4-10d
4-10dx1 1⁄2
630
4-16d
4-16d
4-10dx1 1⁄2
630
4-10dx1 1⁄2
4-10dx1 1⁄2
4-10dx1 1⁄2
575
4-16d
4-16d
4-10dx1 1⁄2
575
4-16d
6-16d
4-10dx1 1⁄2
575
4-16dx2 1⁄2
6-16dx2 1⁄2
4-10dx1 1⁄2
575
4-16d
6-16d
6-10dx1 1⁄2
850
1.Loads are based on Doug Fir, and have been increased for wind or earthquake
loading with no further increase allowed. Reduce where other loads govern.
2.Web stiffeners are required on I-joist for additional nailing.
119