Use and Care Manual
333
CFS Connectors
Copyright © 2020 MiTek Industries, Inc. All Rights Reserved
Cold-Formed Steel Connectors
MiTek
®
Product Catalog
Typical TD10S
installation
The TD8S, TD10S, and TD15S are high capacity holdowns which
are designed for attachment to cold formed steel (CFS) framing
members. Holdowns are secured at the base by attachment to
an anchor bolt.
Materials: See chart
Finish: Primer
Installation:
• Use #10 self-tapping screws to attach the back or strap portion
of the holdown to a steel stud. Install nut to secure the base of
holdown to foundation with anchor bolt of specied diameter.
• A design professional shall specify the type, length, and
embedment depth of the anchor bolt.
• Install anchor bolt nut to base of holdown until nger tight, then
tighten an additional 1/3 to 1/2 turns with a wrench.
Body W L CL Qty Type Plies Mils Gr
2 33 33 8250 0.074 13200 0.164 22325
2 43 33 10115 0.109 16350 0.242 27650
2 54 50 10900 0.091 17435 0.205 29485
2 33 33 8690 0.071 13900 0.159 24575
2 43 33 9310 0.076 14900 0.195 26335
2 54 50 9985 0.058 15975 0.146 28235
2 33 33 11780 0.075 18845 0.146 33410
2 43 33 13770 0.100 22035 0.192 39065
2 54 50 15920 0.096 25475 0.144 45160
1) Back-to-back stud members are required.
2) The designer must specify anchor bolt type, length, and embedment.
3) Designer shall verify the adequacy of the steel studs to transfer the required load.
4) #10 screws are ITW Buildex 10-16 HWH Teks Structural Fasteners with a nominal diameter of 0.190". Self-drilling tapping screws
with equivalent physical and strength properties may be used.
5) Holdown deflection at ASD and LRFD static test load includes fastener slip, holdown deflection, and anchor bolt elongation.
6) The nominal tension load is based on the average of the ultimate tested values.
Code
Ref.
--
Dia.
(in)
Stud
1,3
24 #10
Nominal
Tension
Load
6
(in)
#10
ASD LRFD
Tension
(Lbs.)
Deflection
5
(in)
Tension
(Lbs.)
Deflection
5
(in)
TD15S 7 1/2 2-5/8 21-1/2 S/HD15S
Anchor
Bolt
2
Stud
Screws
4
30 #10
2-1/2 13-7/8
1-11/16 1 48
7/8
3/8 2-1/2 16-1/8 1-5/8
MiTek USP
Stock No.
Fastener Schedule CFS Member
TD10S 10
TD8S 10 3/8
S/HD10S
Ref No.
S/HD8S
7/8
1-5/8
Dimensions (in)
Base
(in)
Steel
Thickness
TD10S
L
W
1-3/4"
2-13/16"
3"
CL
TDS Holdowns