DriftClip® DSL

This drift slide angle is used to connect exterior cold-formed steel curtain wall studs to the slab at the head of wall, while allowing for 2” vertical deflection (1” up and down) and 2” lateral drift (1” left and right-in-plane). TSN’s patented Step Bushing Technology provides an anti-friction and anti-seizure connection between the clip and both the stud web surface & track.

Features
  • ICC-ES Approved, report #ESR-2049
  • Load-rated positive mechanical attachment at each stud
  • Patented Step Bushing Technology provides friction-free motion for smooth vertical deflection
  • Eliminates loose friction-held assemblies, heavy deep-leg track, & top row of wall bridging/strapping
  • Load-rated #12 screws provided for vertical deflection connection to stud web
  • Manufactured with certified, 50ksi, 97 mil, G90 cold-formed steel
Order Information
Qty/Box
DSL362/400
50
DSL362/400-CA
50
DSL600
50
DSL600-CA
50
DSL800
25
DSL800-CA
25
Lbs/Box
DSL362/400
36
DSL362/400-CA
36
DSL600
60
DSL600-CA
60
DSL800
40
DSL800-CA
40
Qty/Skid
DSL362/400
2,250
DSL362/400-CA
2,250
DSL600
2,250
DSL600-CA
2,250
DSL800
1,125
DSL800-CA
1,125
Lbs/Skid
DSL362/400
1,620
DSL362/400-CA
1,620
DSL600
2,700
DSL600-CA
2,700
DSL800
1,800
DSL800-CA
1,800

Nomenclature:
DriftClip DSL is classified by multiplying stud depth by 100.*

Example:6” stud depth
Designate:<DriftClip® DSL600.
* Parts with the designation “-CA” on the end of the part name includes a special bushing available to allow connection to the side of the concrete slab using two ¼” concrete screw anchors.
** If more than 2” lateral drift is required, contact TSN engineering.
*** Three screws & step bushings are present in 6″ sizes and higher. Refer to design requirements for required fastener quantity and placement. TSN provides #12 screws for each bushing for connection through step bushings to stud web.

Material Composition
ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 97mil minimum thickness (12 gauge, 0.1017″ design thickness) with ASTM A653/A653M G90 (Z275) hot dipped galvanized coating.
Catalogs
TSN’s Product Catalogs are an essential resource for the design of cold formed steel. Developed by Engineers, the catalogs contain design data for members, connectors, and fasteners. DriftClip® DSL can be found in the following Catalogs:

TSN Cold-Formed Steel Framing Connections Order Catalog

TSN Connections Technical Catalog

TSN Cold-Formed Steel Framing Connections Technical Catalog

TSN Connections Order Catalog

For a full list of our product catalogs, specification sections, inspection checklists, and research reports please click here.

US Patents #6,612,087

DriftClip® DSL Downloads

DriftClip® DSL Applications

The attachment of DriftClip DSL to the primary structure may be made with PAFs, screws, or bolt anchors depending on the base material (steel or concrete) and the design configuration. The step bushings used for attachment to structure are designed for use with ¼” maximum diameter fasteners. Designing this connection is the responsibility of the Structural Engineer of Record, and a minimum of two fasteners must be used.

DriftClip DSL- Exterior Head of Wall Drift Connection

Drift Connection at the Exterior Head of Wall

Installation Instructions

  1. Attach track to structure with required fasteners.
  2. Attach DriftClip DSL to structure with required fasteners through each Step Bushing.
  3. Attach DriftClip DSL to stud with provided #12 screws through each Step Bushing.

Allowable Loads

33mil (20ga), 33ksi Stud
33mil (20ga), 50ksi Stud
43mil (18ga), 33ksi Stud
43mil (18ga), 50ksi Stud
54mil (16ga), 33ksi Stud
54mil (16ga), 50ksi Stud
68mil (14ga), 50ksi Stud
97mil (12ga), 50ksi Stud
Maximum Allowable Clip Load
DriftClip® DSL, Recommended Allowable Load (lbs): F1
Fastener Pattern 1

DSL362/400 w/2 #12 Screws
357
357
357
357
357
357
357
357
357
DriftClip® DSL, Recommended Allowable Load (lbs): F1
Fastener Pattern 1

DSL600 w/2 #12 Screws
376
544
560
776
776
776
776
776
776
DriftClip® DSL, Recommended Allowable Load (lbs): F1
Fastener Pattern 1

DSL600 w/3 #12 Screws
564
776
776
776
776
776
776
776
776
DriftClip® DSL, Recommended Allowable Load (lbs): F1
Fastener Pattern 1

DSL800 w/2 #12 Screws
376
544
560
810
788
1,041
1,041
1,041
1,041
DriftClip® DSL, Recommended Allowable Load (lbs): F1
Fastener Pattern 1

DSL800 w/3 #12 Screws
564
816
840
1,041
1,041
1,041
1,041
1,041
1,041
33mil (20ga), 33ksi Stud
33mil (20ga), 50ksi Stud
43mil (18ga), 33ksi Stud
43mil (18ga), 50ksi Stud
54mil (16ga), 33ksi Stud
54mil (16ga), 50ksi Stud
68mil (14ga), 50ksi Stud
97mil (12ga), 50ksi Stud
Maximum Allowable Clip Load
DriftClip® DSL, Recommended Allowable Load (lbs): F2
Fastener Pattern 2

DSL362/400 w/2 #12 Screws
129
129
129
129
129
129
129
129
129
DriftClip® DSL, Recommended Allowable Load (lbs): F2
Fastener Pattern 2

DSL600 w/2 #12 Screws
376
418
418
418
418
418
418
418
418
DriftClip® DSL, Recommended Allowable Load (lbs): F2
Fastener Pattern 2

DSL600 w/3 #12 Screws
418
418
418
418
418
418
418
418
418
DriftClip® DSL, Recommended Allowable Load (lbs): F2
Fastener Pattern 2

DSL800 w/2 #12 Screws
376
544
560
810
788
1,041
1,041
1,041
1,041
DriftClip® DSL, Recommended Allowable Load (lbs): F2
Fastener Pattern 2

DSL800 w/3 #12 Screws
564
816
840
1,041
1,041
1,041
1,041
1,041
1,041

Notes:

  • Design loads are for attachment of DriftClip DSL to stud only.
  • Allowable loads have not been increased for wind, seismic, or other factors.
  • DriftClip DSL allows up to 2″ of vertical deflection (1″ up and 1″ down), and 2″ of lateral drift (1″ left and 1″ right) in plane. Deflection requirements greater than 2″ of lateral drift are available.
  • #12 screws are provided for each step bushing attachment to studs. Load requirements do not always require the use of a third screw.
  • Attachment of structure to be engineered by others. As a design reference for the structure attachment, reference AISI S100 or screw manufacturers published data for allowable loads for screw fasteners of 1/4″-20 size with various plate thicknesses.
  • One row of bridging is recommended at a maximum distance of 18″ from DriftClip to resist torsional effects.
  • For LRFD strengths contact TSN technical services.

Load Direction

DriftClip DSL - Screw Pattern 1

Screw Pattern 1

DriftClip DSL - Screw Pattern 2

Screw Pattern 2

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