Specification
C-2013 © 2013 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/12
167
META/HETA/HHETA/HETAL/DETAL/TSS
Embedded Truss Anchors and Truss Seat Snap-In
Masonry Connectors
MSTAM and MSTCM models are designed for wood to
masonry applications.
The MSTC series has countersunk nail slots for a lower
nailing profile.
FINISH: Galvanized. Some products are available in
stainless steel or ZMAX
®
coating; see Corrosion Information,
page 14-15.
INSTALLATION:
•Useallspecifiedfasteners.SeeGeneralNotes.
•Attachestogroutedconcreteblockandwoodframing.
•MinimumendandedgedistanceforTiten
®
screws is 1
1
⁄
2
".
CODES: See page 13 for Code Reference Key Chart.
Top of
Masonry
MSTCM40
(Other MSTCM
similar)
MSTAM/MSTCM
Straps Ties
#5 Rebar
Min.
F
2
F
1
Typical Installation
with two METAs
Moisture barrier
not shown (Typ.)
MSTAM36
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.
Masonry Application
1. Loads include a 60% load duration increase on the fasteners for wind or earthquake loading.
2. Minimum edge distance 1
1
⁄
2
" using Titen
®
screws.
3. Minimum f'
m
= 1500 psi and f'
c
= 2500 psi.
4. Products shall be installed such that the Titen screws are not exposed to the weather.
5. See page 159 for Titen screw information.
6. NAILS: 16d Sinker = 0.148" dia. x 3
1
⁄
4
" long, 10d = 0.148" dia. x 3" long. See page 22-23 for other nail sizes and information.
Model
No.
Ga
Dimensions Fasteners (Total) Allowable Tension/Uplift Loads
Code
Ref.
W L Nails CMU Concrete
DF/SP SPF/HF
(160) (160)
MSTAM24 18 1
1
⁄
4
24 9-10d 5-
1
⁄
4
x2
1
⁄
4
Titen 5-
1
⁄
4
x1
3
⁄
4
Titen 1500 1500
F27
MSTAM36 16 1
1
⁄
4
36 13-10d 8-
1
⁄
4
x2
1
⁄
4
Titen 8-
1
⁄
4
x1
3
⁄
4
Titen 1870 1870
MSTCM40 16 3 40
1
⁄
4
26-16d sinkers 14-
1
⁄
4
x2
1
⁄
4
Titen 14-
1
⁄
4
x1
3
⁄
4
Titen 4220 4220
MSTCM60 16 3 59
1
⁄
2
26-16d sinkers 14-
1
⁄
4
x2
1
⁄
4
Titen 14-
1
⁄
4
x1
3
⁄
4
Titen 4220 4220
See notes above.
Floor-to-Floor Clear Span Table
Model
No.
Clear
Span
Fasteners (Total) Allowable Tension/Uplift Loads
Code
Ref.
Nails CMU Concrete
DF/SP SPF/HF
(160) (160)
MSTAM36 16 or 18 7-10d 4-
1
⁄
4
x2
1
⁄
4
Titen 4-
1
⁄
4
x1
3
⁄
4
Titen 1400 1380
F27
MSTCM40 16 or 18 14-16d sinkers 10-
1
⁄
4
x2
1
⁄
4
Titen 10-
1
⁄
4
x1
3
⁄
4
Titen 2800 2420
MSTCM60 22
1
⁄
4
26-16d sinkers 14-
1
⁄
4
x2
1
⁄
4
Titen 14-
1
⁄
4
x1
3
⁄
4
Titen 4220 4220
MSTCM60 26
1
⁄
4
20-16d sinkers 14-
1
⁄
4
x2
1
⁄
4
Titen 14-
1
⁄
4
x1
3
⁄
4
Titen 3840 3320
Double Embedded Anchor Installation
1¹⁄₂"
Min.
Clear Span
Typical
MSTAM36
Installation
1. Loads include a 60% load duration increase on the fasteners for wind or seismic loading.
2. Minimum f'
c
= 2500 psi. Minimum f'
m
= 1500 psi.
3. For simultaneous loads in more than one direction, the connector must be evaluated as described in Note e,
page 18 under General Instructions for the Designer.
4. Install with spoons facing outward and straps spaced no more than
1
⁄
8
" wider than the truss width.
5. The DETAL20 requires 6-10dx1
1
⁄
2
" nails in the truss seat and 6-10dx1
1
⁄
2
" nails into each strap.
For all other models, install half of the required fasteners in each strap.
6. Lateral loads for META, HETA and HHETA anchors apply only to 2- or 3-ply applications with anchors spaced a minimum of 3" apart. For single-ply
applications use lateral loads from the Single Embedded Anchor Installation table on page 166. DETAL lateral loads apply for single-ply application.
7. F
1
lateral loads listed may cause an additional
1
⁄
16
" deflection beyond the standard
1
⁄
8
" limit where the straps are installed not wrapped over the heel as shown.
8. Two HHETA anchors may be installed in a concrete tie beam on a 2- or 3-ply truss with 2 fewer nails for an allowable uplift load of 3050 lbs.
9. Noted F
1
lateral loads for the DETAL20 may cause an additional
1
⁄
32
" deflection beyond the standard
1
⁄
8
" limit.
10. Single-ply trusses may use either 10dx1
1
⁄
2
or 16d nails with allowable loads limited to the single-ply column. 2- or 3-ply trusses shall use 16d nails.
11. NAILS: 16d = 0.162" dia. x 3
1
⁄
2
" long, 10dx1
1
⁄
2
= 0.148" dia. x 1
1
⁄
2
" long. See page 22-23 for other nail sizes and information.
Model
No.
Qty. Application
SP Uplift Load Capacity (160) Lateral Loads (160)
6
Code
Ref.
1 Ply 2 or 3 Ply
F
1
F
2
Fasteners
5
Load Fasteners
5
Load
DETAL20 1
CMU 18-10dx1
1
⁄
2
2480 — — 2000
9
1370
F27
Concrete 18-10dx1
1
⁄
2
2480 — — 2000 1505
META 2
CMU 10-10dx1
1
⁄
2
1985 14-16d 1900 1210
7
1160
Concrete 10-10dx1
1
⁄
2
1985 14-16d 2565 1210
7
1160
HETA 2
CMU 10-10dx1
1
⁄
2
2035 12-16d 2500 1225
7
1520
Concrete 10-10dx1
1
⁄
2
2035 12-16d 2700 1225
7
1520
HHETA 2
CMU 10-10dx1
1
⁄
2
2035 12-16d 2500 1225
7
1520
Concrete 10-10dx1
1
⁄
2
2035 14-16d
8
3350 1225
7
1520
Masonry Connectors