Straps & Ties
A Angles and Z Clips
Z2 clips secure 2x4 flat blocking between joists or trusses
to support sheathing.
MATERIAL: Z clips—see table. A21 and A23—18 ga.;
all other A angles—12 ga.
FINISH: Galvanized. Some products available in stainless steel or ZMAX®
coating; see Corrosion Information, pages 14-17.
INSTALLATION: • Use all specified fasteners. See General Notes.
• Z clips do not provide lateral stability. Do not walk on stiffeners or
apply load until diaphragm is installed and nailed to stiffeners.
• F1 direction is loading into the part.
These products are available with additional corrosion protection. Additional products on
this page may also be available with this option, check with Simpson Strong-Tie for details.
A44 Installation
(A33 similar)
Moisture
barrier
not shown
These products are approved for installation with the Strong-Drive ® SD Connector screw.
See page 24 for more information.
Fasteners
Base
W1 W2
L
Post
Bolts
Nails
Bolts
Nails
A21
2
1 1⁄2 1 3⁄8
—
2-10dx1 1⁄2
—
2-10dx1 1⁄2
A23
2
1 1⁄2 2 3⁄4
—
4-10dx1 1⁄2
—
4-10dx1 1⁄2
A33
3
1 1⁄2
—
4-10d
—
4-10d
A44
4 9⁄16 4 3⁄8 1 1⁄2
—
4-10d
—
4-10d
A66
5 7⁄8 5 7⁄8 1 1⁄2
2- 3⁄8"
MB
3-10d
2- 3⁄8"
MB
3-10d
3
A88
8
8
2
3- 3⁄8"
MB
4-10d
3- 3⁄8"
MB
4-10d
A24
3 7⁄8
2
2 1⁄2
1-1⁄2"
MB
—
1-1⁄2"
MB
2-10d
A311
11
3 5⁄8
2
1-1⁄2"
MB
—
1-1⁄2"
MB
4-10d
Factored Resistance (K D = 1.15)
D.Fir-L
S-P-F
F2
F1
F2
F1
lbs
lbs
lbs
lbs
kN
kN
kN
kN
405
260
335
185
1.80
1.16
1.49
0.82
815
715
725
510
3.63
3.18
3.23
2.27
1175
570
930
405
5.23
2.54
4.14
1.80
1175
485
930
345
5.23
2.16
4.14
1.53
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1.Factored resistances have been increased 15% for earthquake or wind loading
with no further increase allowed; reduce where other loads govern.
2.NAILS: 10dx1 1⁄2 = 0.148" dia. x 1 1⁄2" long, 10d = 0.148" dia. x 3" long.
See pages 22-23 for other nail sizes and information.
Model
No.
Z2
Dimensions
(in)
Ga
W1
20
2 ⁄16
5
H
1 ⁄2
1
B
1 ⁄8
3
TF
1 ⁄8
3
Fasteners
Total
4-10dx1 ⁄2
1
Z4
12
1 1⁄2
3 1⁄2
2 1⁄8
1 3⁄4
2-16d
Z6
12
1 1⁄2
5 3⁄8
2
1 3⁄8
2-16d
Z28
28
2 5⁄16
1 1⁄2
1 3⁄8
1 3⁄8
10dx1 1⁄2
Z38
28
2 ⁄16
2 ⁄2
1 ⁄8
1 ⁄8
10dx1 ⁄2
Z44
12
5
2 1⁄2
1
3 1⁄2
3
2
3
1 3⁄8
1
1
4-16d
A24 Installation
Moisture
barrier
not shown
A311 Installation
Straps & Ties
Catalogue C-C-CAN2015 © 2015 SIMPSON STRONG-TIE COMPANY INC.
Model
No.
Dimensions
(in)
Z4
Factored Resistance
(K D = 1.00)
D.Fir-L
S-P-F
lbs
lbs
kN
kN
740
525
3.29
2.34
765
545
3.40
2.42
790
560
3.51
2.49
—
—
—
—
—
—
—
—
1420
1010
6.32
4.49
1.Z28 and Z38 do not have nail holes. Fastener quantity and type shall be per Designer.
2.Z4 and Z6 resistances apply with a nail into the top and a nail into the seat.
3.Factored resistances for Z clips cannot be increased for short term loading.
4.NAILS: 16d = 0.162" dia. x 3 1⁄2" long, 10dx1 1⁄2 = 0.148" dia. x 1 1⁄2" long.
See pages 22-23 for other nail sizes and information.
(Others
similar)
A21/A23
Installation
Typical Z2 Installation
193