AWCI’s Member Products Catalog 2017 - SST4

SCHA Slide-Clip Connectors
Allowable 1/4" Titen HD® Concrete Screw Anchorage Loads
Allowable Anchor Loads1 (lb.) F2 and F3
Anchorage Type

Simpson Strong-Tie®
Titen HD Screw Anchor
Model THDB25178H

Anchors Quantity
and Size

Wind and Seismic in SDC A and B6

Seismic in SDC C through F

Uncracked Concrete

Cracked Concrete

Cracked Concrete
(Ω = 1.0)

(4) ¼" x 1 7/8"

1,025

730

855

350

(2) ¼" x 1 7/8"

510

365

425

175

1. Allowable anchor capacities have been determined using ACI 318-11
Appendix D calculations with a minimum concrete compressive strength
(f'c ) of 2,500 psi and 5" slab thickness in normal-weight concrete. Tabulated
values can be multiplied by a factor (λa) of 0.6 for sand-lightweight concrete.
2. Nominal Embedment Depth/Effective Embedment Depth relationship is
1.75" (hnom) / 1.30" (hef).
3. Edge distance is assumed to be 2", and end distance is 7 1/8".
4. Load values are for group anchors based on ACI 318-11, condition B, load
factors from ACI 318 Section 9.2, no supplement edge reinforcement,
ψc, v = 1.0 for cracked concrete and periodic special inspection.
5. Allowable Stress Design (ASD) values were determined by multiplying
calculated LRFD capacities by a conversion factor, Alpha (α), of 0.70 for

Cracked Concrete7
(Ω = 2.5)

seismic load and 0.6 for wind loads. ASD values for other combinations may
be determined using alternate conversion factors.
6. Tabulated allowable ASD loads for Wind and Seismic in SDC A & B are
based on using wind conversion factors and may be increased by 1.17 for
SDC A & B only.
7. Allowable loads have been divided by an Omega (Ω) seismic factor of 2.5 for
brittle failure as required by ACI 318-11 Appendix D.
8. Allowable F2 and F3 loads are based on the governing loading direction,
which is toward the edge of slab.
9. Tabulated capacities are based on maximum allowable anchorage loads
only. The capacity of the connection system shall be the minimum of the
tabulated value and the SCHA Allowable Connector Loads.

General Notes for Allowable Connector Load Tables
1. Allowable loads are for use when utilizing the traditional
Allowable Stress Design methodology. Contact Simpson
Strong-Tie for LRFD loads unless otherwise noted.
2. Allowable loads are based on cold-formed steel members with
a minimum yield strength, Fy, of 33 ksi and tensile strength, Fu,
of 45 ksi for 43 mils (18 ga.) and thinner, and a minimum yield
strength of 50 ksi and tensile strength of 65 ksi for 54 mils
(16 ga.) and thicker.

7. Allowable loads for welded connections require E70XX
electrodes with a minimum throat size equal to the clip
thickness. Welding shall be in compliance with AWS D1.3.
Welding galvanized steel may produce harmful fumes; follow
proper welding procedures and precautions.

3. Allowable loads may not be increased for wind or seismic load.

8. Clips do not replace lateral or stability bracing. Design of
bracing is the responsibility of the Designer.

4. Allowable loads for #12 self-drilling screws are based on a
minimum nominal shear strength, Pss, of 2,520 lb. and nominal
tension strength, Pts, of 2,535 lb.
5. It is the responsibility of the Designer to select proper-length
fasteners based on installation need. Screw length must ensure
fastener extends through the connection a minimum of three
exposed threads.
6. Allowable loads for Simpson Strong-Tie® PDPAT-62KP powderactuated "tophat" fasteners also apply to alternate fasteners
with a minimum shank of 0.157", a minimum head diameter
of 0.300", a minimum allowable shear of 410 lb. and tension

Printed on
recycled paper
with 30%
post-consumer
waste.

strength of 260 lb. for A36 steel per ESR-2138. "Tophat"
fasteners are recommended to ensure adequate clamping force
and consistent installations.

9. It is the responsibility of the Designer to verify the adequacy
of the stud. Allowable loads are based on clips installed an
adequate distance away from penetrations, notches, ends of
studs and other conditions that may affect the clip performance.
10. It is the responsibility of the Designer to check the adequacy of
the supporting structure for loads imposed by connectors.
11. Industry studies show that hardened fasteners can experience
performance problems in wet or corrosive environments.
Accordingly, use these products in dry and non-corrosive
environments only.

This flier is effective until June 30, 2018, and reflects information available as of January 1, 2016.
This information is updated periodically and should not be relied upon after June 30, 2018; contact
Simpson Strong-Tie for current information and limited warranty or see www.strongtie.com.
© 2016 Simpson Strong-Tie Company Inc. * P.O. Box 10789, Pleasanton, CA 94588 F-CF-SCHA16 1/16 exp. 6/18

800-999-5099
www.strongtie.com

http://www.strongtie.com http://www.strongtie.com

Table of Contents for the Digital Edition of AWCI’s Member Products Catalog 2017