MasterClip® VLB

Easily connect exterior cold-formed steel curtain wall studs to the slab, bypassing the primary structure. The MasterClip VLB’s dual-purpose design allows it to be installed as a rigid connection to resist vertical & horizontal loads or a vertical deflection connection.

Its patented Integrated Break-Away Step Bushings provide friction-free motion for a smooth vertical deflection (slide) connection providing up to 2” deflection (1” up & 1” down). Simplify ordering process & inventory with a single clip for rigid & deflection applications.

Features
  • Load-rated positive mechanical attachment at each stud
  • Patented Integrated Break-Away Step Bushings provide friction-free motion for smooth vertical deflection
  • Eliminates loose friction-held assemblies, heavy deep-leg track, & the top row of wall bridging/strapping
  • Load-rated #12 screws provided for vertical deflection connection to stud web
  • Manufactured with certified, 68mil, 50ksi cold-formed steel
Order Information
Qty/Box
VLB600
50
VLB800
50
Lbs/Box
VLB600
38
VLB800
38
Qty/Skid
VLB600
4,500
VLB800
4,500
Lbs/Skid
VLB600
3,420
VLB800
3,420

Nomenclature:
MasterClip VLB is designated by type (VLB), followed by stud depth in inches multiplied by 100.

Example: 6″ stud
Designate: MasterClip® VLB600

Material Composition
ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 68mil minimum thickness (14 gauge, 0.0713” 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. MasterClip® VLB 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.

Blast & Seismic Design
The Steel Network is the only connector manufacturer in the US that has rated its connector products for special seismic and blast design by providing tables with LRFD design strength, nominal strength and ultimate strength for each connector.

US Patents #8,181,419, #8,683,770, & #10,132,341

MasterClip® VLB Downloads

MasterClip® VLB Applications

The unique design of MasterClip allows it to be installed either as a vertical deflection connection or a rigid connection.  The attachment of MasterClip to the primary structure may be made with PAFs, screw/bolt anchors or welds and is dependent upon the base material (steel, concrete or CMU) and the design configuration.

MasterClip VLB Hybrid LSF Connector for Vertical Deflection

Curtain Wall Slab Bypass as a Vertical Deflection Connection

MasterClip VLB Hybrid LSF Connector for Rigid Applications

Curtain Wall Slab Bypass as a Rigid Connection

MasterClip® VLB Installation Instructions

  1. Place the MasterClip VLB slide angle against structural pour stop.
  2. Attach VLB to the structure with required fasteners, as designed:
        • For a Vertical Deflection Connection: Fasten VLB to the stud with provided screws through Integrated Break-Away Step Bushings.
        • For a Rigid Connection: Fasten VLB to the stud with required screws through pre-drilled guide holes.

MasterClip® VLB Allowable Loads:

Load Table Notes:

  • Allowable load tables incorporate eccentric loading of fasteners. Values with a welded connection may increase.
  • Fasten within ¾” of the angle heel (centerline of the 1½” leg) to minimize eccentric load transfer.
  • Fasteners attaching clips to structure should be installed symmetrically around the center line of the clip. The allowable load of the clip may be reduced if fasteners are not installed symmetrically.
  • Guide holes in the 1 ½” leg measure 0.141″ in diameter.
  • Total vertical deflection up to 2″ (1″ up and 1″ down).
  • Allowable loads have not been increased for wind, seismic, or other factors.
  • MasterClip VLB resists horizontal and vertical loads when used as a rigid connector.
  • Loads listed reflect force in a single direction. When multiple loads react on the connection, it is the responsibility of the designer to check the interaction of forces.
  • Torsional effects are considered on the screw group for F3 allowable loads. It is assumed that half of the torsional moment is taken by the connection to the structure and half is taken by the screw connection to the stud.
  • Design loads consider loads on the clip and #12 screw fasteners to the stud web.
  • (3) #12 screws are provided with each connector (based on number of integrated breakaway step bushings). Load requirements don’t always require the use of all screws provided.
  • Three slots are standard in 6″ and higher web depths to accommodate construction tolerances. Use of a 3rd screw and bushing is dependent upon load requirements.
MasterClip VLB Load Directions

Load Directions

Rigid Connection: F1, F2, & F3 Load Directions

Screw Patterns with #12 Screws
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
F1 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 3 screws3 screws
191
275
248
359
312
540
536
536
536
F1 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 4 screws4 screws
191
275
248
359
312
540
536
536
536
F1 - Rigid Connection
VLB800
MasterClip VLB - Rigid with 3 screws3 screws
182
182
182
182
182
182
182
182
182
F1 - Rigid Connection
VLB800
MasterClip VLB - Rigid with 4 screws4 screws
182
182
182
182
182
182
182
182
182
F2 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 2 screws2 screws
377
544
561
810
789
1,139
1,610
1,698
1,811
F2 - Rigid Connection
VLB600/VLB800
MasterClip VLB - Rigid with 3 screws3 screws
565
817
841
1,215
1,183
1,709
1,811
1,811
1,811
F2 - Rigid Connection
VLB600/VLB800
MasterClip VLB - Rigid with 4 screws4 screws
754
1,089
1,122
1,620
1,577
1,811
1,811
1,811
1,811
F3 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 2 screws2 screws
251
362
373
539
524
757
1,071
1,129
1,792
F3 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 3 screws3 screws
377
544
561
810
789
1,139
1,610
1,698
1,792
F3 - Rigid Connection
VLB600
MasterClip VLB - Rigid with 4 screws4 screws
503
727
749
1,082
1,053
1,521
1,792
1,792
1,792
F3 - Rigid Connection
VLB800
MasterClip VLB - Rigid with 3 screws3 screws
332
479
494
713
694
1,002
1,269
1,269
1,269
F3 - Rigid Connection
VLB800
MasterClip VLB - Rigid with 4 screws4 screws
441
637
656
948
923
1,269
1,269
1,269
1,269

Vertical Deflection: F1 & F2 Load Directions

Screw Patterns with #12 Screws
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
F1 - Deflection Connection
VLB600
MasterClip VLB - Vertical Deflection with 2 screws2 screws
95
138
124
179
156
225
227
227
227
F1 - Deflection Connection
VLB600
MasterClip VLB - Vertical Deflection with 3 screws3 screws
95
138
124
179
156
225
227
227
227
F1 - Deflection Connection
VLB800
MasterClip VLB - Vertical Deflection with 2 screws2 screws
95
107
107
107
107
107
107
107
107
F1 - Deflection Connection
VLB800
MasterClip VLB - Vertical Deflection with 3 screws3 screws
95
107
107
107
107
107
107
107
107
F2 - Deflection Connection
VLB600/VLB800
MasterClip VLB - Vertical Deflection with 2 screws2 screws
377
544
561
810
789
1,139
1,567
1,567
1,567
F2 - Deflection Connection
VLB600/VLB800
MasterClip VLB - Vertical Deflection with 3 screws3 screws
565
817
841
1,215
1,183
1,567
1,567
1,567
1,567

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