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Products > Heavy Duty Connectors > VertiClip® SLB-HD

VertiClip® SLB-HD

VertiClip SLB-HD

US Patent #5,906,080

The VertiClip® SLB-HD connects exterior curtain wall studs, bypassing the building structure, while allowing for vertical deflection of the structure up to 2” (1’ up and 1’ down). VertiClip’s unique design provides both an anti-friction and anti-seizure connection between the clip and the stud web surface thereby preventing a transfer of vertical forces into curtain wall framing which is not engineered to support axial loads. VertiClip SLB-HD eliminates flange-loaded, friction-fit clips, which do not address web crippling. Allowable loads are based on three #12 screws for attachment to the stud (provided by TSN). The SLB-HD allows clip connection to the concrete deck of the primary structure using concrete anchors, either two ¼” concrete screw anchors, or one ½” expansion anchor for applications that do not allow PAF’s.


  • Positive, mechanical attachment
  • Only certified, 50 ksi steel is used
  • Step Bushings pre-installed for accurate placement
  • Rated screws provided
  • Load transferred from stud web
  • Elimination of friction-held assemblies
  • Meets all building code criteria
  • Eliminates shims and scabs
  • Aligns wall studs quickly and easily by accounting for construction tolerances
  • Eliminates bridging or strapping within the bridging spacing from the connection
  • Attaches to primary structure slab with either ¼” concrete screws or ½” concrete anchor, for applications not allowing the use of PAF’s
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Product Information

VertiClip SLB-HD Application

Material Composition

ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340 MPa) minimum yield strength, 65ksi minimum tensile strength, 68mil minimum thickness (14 gauge, 0.0713” design thickness) with ASTM A653/653M G90 (Z275) hot dipped galvanized coating.

  1. Place VertiClip® angle against structural pour stop.
  2. Attach SLB-HD to structure with required fasteners.
  3. Fasten SLB-HD to stud with provided screws through Step Bushings.

pdf icon Printable Installation Instructions

Order Information
Designation Qty/Box Lbs/Box Qty/Skid Lbs/Skid
SLB600-HD 50 38 2,250 1,710


VertiClip SLB600-HD is designed to be used with 6” studs and is designated VertiClip® SLB600-HD.

VertiClip SLB-HD Dimensions
Allowable (Unfactored) Loads1
VertiClip® SLB600-HD, Recommended Allowable Load (lbs): F1 & F2
Stud F1 Allowable (ASD) Loads F2 Allowable (ASD) Loads with Two ¼” Concrete Fasteners F2 Allowable (ASD) Loads with One ½” Concrete Anchor
Thickness mils (ga) Yield Strength (ksi) w/2-3 #12 Screws w/2* #12 Screws w/3 #12 Screws w/2* #12 Screws w/3 #12 Screws
33 (20) 33 95 376 564 376 564
43 (18) 33 124 560 840 560 840
54 (16) 33 156 788 1,182 788 1,003
54 (16) 50 225 1,140 1,187 1,003 1,003
68 (14) 50 234 1,187 1,187 1,003 1,003
97 (12) 50 234 1,187 1,187 1,003 1,003
Maximum Allowable Clip Load 234 1,187 1,003
  • Fasten within ¾" from the angle heel (centerline of the 1 ½" leg) to minimize eccentric load transfer.
  • Guide holes for structure connection are 0.375" diameter for (2) ¼" concrete screws, and 0.625" diameter for (1) ½" concrete anchor.
  • VertiClip SLB-HD allows up to 2" of vertical deflection (1" up and 1" down).
  • VertiClip SLB600-HD is designed to support horizontal loads and should not be used in axial-load-bearing wall construction.
  • Allowable loads have not been increased for wind, seismic, or other factors.
  • (3) bushings are provided with each clip. Based on the application and evaluation by the design professional, two may be sufficient. If only the outer two slots are used to accommodate greater building tolerances, allowable loads may be reduced.
  • Loads listed reflect force in a single direction. When multiple loads act on the connection, it is the responsibility of the designer to check the interaction of the forces.
  • The recommended allowable load is for the clip and attachment to the stud only. The design professional must design attachment to the primary structure.

1 For LRFD Design Strengths refer to ICC-ESR-2049.
* First and third bushings installed

Load Direction

VertiClip SLB-HD Load Directions

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.

VertiClip® SLB-HD and the rest of TSN's Alternative Seismic Connections can be found in the following Catalogs:

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