Page 156 of Wood Construction Connectors 2006 Catalog by Simpson Strong-Tie
SA/HSA Strap Connectors
1.Loads include a 33% or 60% load duration
increase on the fasteners for earthquake or
wind loading, but DO NOT include a 33%
stress increase on the steel capacity.
Refer to page 13 for further explanation.
2.10d commons may be substituted where
16d sinkers are specified at 100% of the
table loads.
3.16d sinkers (0.148" dia. x 3 long) or 10d
commons may be substituted where 16d
commons are specified at 0.85 of the table loads.
4.Allowable bolt loads are based on parallel-tograin loading and these minimum member
thicknesses: MST-2 HST2 and HST5-4";
HST3 and HST6-4 ".
5.Use half of the required nails in each member
being connected to achieve the listed loads.
6.For overlap splice details, refer to T-CMST.
7. Straps with 10d (0.148 dia. x 3) nails
specified may be substituted with 10dx1
(0.148 dia. x 1 with no reduction in load.
8. NAILS: 16d 0.162" dia. x 3 long,
16d Sinker 0.148" dia. x 3 long,
10dx1 0.148" dia. x 1 long.
See page 16-17 for other nail sizes
and information.
Model
No.
Ga
Dimensions Fasteners (Total)
W
L
Nails
Qty Dia
(133)
(160)
(133)
(160)
MST27
12
2
27
30-16d
4
3140
3770
1800
2165
MST37
2
37
42-16d
6
4395
5080
2525
3025
MST48
2
48
46-16d
8
4845
5310
3065
3675
3, 39,
88, 121,
128
3, 39,121,128
3, 39,
88, 121
MST60
10
2
60
56-16d 10
6420
6760
3740
4485
MST72
2
72
56-16d 10
6420
6760
3740
4485
HST2
7
2
21
6
4350
5220
HST5
5
21
12
8875
10650
HST3
3
3
25
6
6400
7680
HST6
6
25
12
12890
15470
Bolts
Nails
Bolts
Code
Ref.
Allowable Tension Loads
(DF/SP)
(133)
(160)
(133)
(160)
2740
3290
1665
2000
3835
4605
2335
2805
4200
5040
2840
3410
5600
6510
3480
4175
5600
6510
3480
4175
4030
4835
8225
9870
5550
6660
11100
13320
Nails
Bolts
Allowable Tension Loads
(SPF/HF)
Floor-to-Floor Clear Span Table
Model
No.
Clear
Span
Fasteners
(Total)
Allowable Tension
Loads (DF/SP)
(133)
(160)
Allowable Tension
Loads (SPF/HF)
(133)
(160)
MSTC28
18
12-16d sinker
1000
1200
16
16-16d sinker
1335
1600
MSTC40
18
28-16d sinker
2335
2800
16
36-16d sinker
3000
3600
MSTC52
18
44-16d sinker
3665
4400
16
48-16d sinker
4000
4585
MSTC66
18
64-16d sinker
5505
5660
16
68-16d sinker
5660
5660
MSTC78
18
76-16d sinker
5660
5660
16
76-16d sinker
5660
5660
4780
5660
5075
5660
5660
5660
5660
5660
MST37
18
20-16d
2095
2510
16
22-16d
2305
2765
MST48
18
32-16d
3370
3695
16
34-16d
3580
3695
MST60
18
46-16d
4830
4830
16
48-16d
4830
4830
MST72
18
46-16d
4830
4830
16
48-16d
4830
4830
MSTI36
18
14-10dx1
1270
1525
16
16-10dx1
1450
1740
MSTI48
18
26-10dx1
2355
2830
16
28-10dx1
2540
3045
MSTI60
18
38-10dx1
3445
4135
16
40-10dx1
3625
4350
MSTI72
18
50-10dx1
4535
5080
16
52-10dx1
4715
5080
1825
2190
2010
2410
2925
3505
3105
3635
4600
4830
4800
4830
4600
4830
4800
4830
1035
865
1380
1150
2420
2015
3110
2590
3800
3170
4145
3455
1100
1320
1260
1510
2045
2455
2205
2645
2990
3585
3145
3775
3935
4720
4090
4910
CODES:
See page 12 for
Code Listing
Key Chart.
Typical Detail with Strap
Installed Over Sheathing
When nailing
the strap over
OSB/plywood, use
10d commons,
16d sinkers,
16dcommons.
A minimum
penetration of
10 nail diameters
is required for
table loads.
See note 3 for
load reductions.
Nails are
not required
in the rim
board area.
Floor-to-Floor Tie
Installation
showing
a Clear Span
Available with additional corrosion
protection. Check with factory.
A high value seismic tie for horizontal ties across intervening members.
FINISH: Galvanized
INSTALLATION: Use all specified fasteners. See General Notes. May not be suitable for floor diaphragms which protrude above beams.
CODES: See page 12 for Code Listing Key Chart.
Model
No.
Strap
Section
L
Total Fasteners
Allowable
Horizontal Loads
Nails
Bolts
Nails
(133 160)
Bolts
Qty
Dia
(133)
(160)
SA36
12 ga x 2
36
22-16d
4
1900
1605
1900
HSA32
3 ga x 3
32
2
1910
2290
HSA41
3 ga x 3
41
4
3770
4520
HSA50
3 ga x 3
50
6
5470
6400
HSA59
3 ga x 3
59
8
6940
8330
HSA68
3 ga x 3
68
10
8350
10020
Code
Ref.
3, 39,
88, 121
1.Allowable loads have been increased 33% and
60% for earthquake or wind loading with no further
increase allowed; reduce where other loads govern.
2.Allowable loads assume a restrained member
of 3 min. thickness with bolts in single shear.
3.Bolt and nail values may not be combined.
4.Only SA36 can be field-bent for other
intermediate beam widths.
5. NAILS: 16d 0.162" dia. x 3 long.
See page 16-17 for other nail sizes and
information.
Typical HSA
Installation
Typical SA Installation
with Saddle Hanger
157
Straps Ties
HST/MST/MSTC/MSTI Strap Ties
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