Use and Care Manual

133
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Angles & Straps
Angles & Straps
MiTek
®
Product Catalog
HTWM Masonry Twist Straps
The HTWM Twist Straps are designed for truss to concrete
or masonry connections. Offers uplift resistance with variable
heel height and positioning applications.
Materials: 14 gauge
Finish: G90 galvanizing
Codes: FL
Installation:
• Use all specied fasteners. See Product Notes, page 18.
• Strap may be attached to either side of grouted masonry
or concrete wall with a minimum of (1) #5 horizontal rebar.
• Drill hole in concrete or masonry with manufacturer's
prescribed 1/4" masonry drill. Install fasteners into concrete
or masonry per manufacturer’s specication.
• Twist straps do not have to be wrapped over the truss
to achieve the allowable loads.
• Moisture barrier may be required.
Ref. No. W L L1 Qty Qty
HTWM16 HTSM16, MTSM16 14 1-1/4 16 5-3/4 4 1/4" x 1-3/4" 8 10d x 1-1/2 1225 1145
HTWM20 HTSM20, MTSM20 14 1-1/4 20 7-3/4 4 1/4" x 1-3/4" 8 10d x 1-1/2 1225 1145
1) Allowable loads have been increased 60% for wind or seismic loads; no further increase shall be permitted.
2) Use DeWalt 1/4" x 1-3/4" Screw-Bolt
TM
+; or equal, installed in accordance with manufacturer's specification.
3) DeWalt 1/4" x 1-3/4" Screw-Bolt
TM
+ are not supplied with HTWM straps. See page 45 for anchor information.
4) Grout or concrete compressive strength shall be 2,500 psi or greater at 28 days.
5)
NAILS:
10d x 1-1/2 nails are 0.148" dia. x 1-1/2" long.
MiTek USP
Stock No.
Steel
Gauge
Code
Ref.
FL
Dimensions (in)
Screw
Anchor
2,3
Fastener Schedule
Type
5
DF/SP
Allowable
Loads (Lbs.)
Uplift
160%
1
Uplift
160%
1
S-P-F
Allowable
Loads (Lbs.)
CMU/Concrete
Wall
4
Truss/Rafter
Typical HTWM
installation
HTWM
L
L1
L1
W
W