StiffClip® LB
The StiffClip LB series connects exterior wall studs to the building’s structure through a unique design incorporating the use of stiffened legs of a 90° angle to increase bending strength. StiffClip LB resists horizontal and vertical loads.
Features
- Various lengths allow for construction tolerance
- Guide holes for attachment to structure and stud
- Replaces expensive bracing
- Structurally load tested
Order Information
Qty/Box
LB362/400
50
LB600
50
LB600-HD
50
LB800
50
LB1000
25
LB1200
25
Lbs/Box
LB362/400
26
LB600
38
LB600-HD
38
LB800
48
LB1000
28
LB1200
33
Qty/Skid
LB362/400
4,500
LB600
4,500
LB600-HD
2,250
LB800
2,000
LB1000
1,125
LB1200
1,125
Lbs/Skid
LB362/400
2,340
LB600
3,420
LB600-HD
1,710
LB800
1,920
LB1000
1,260
LB1200
1,485
Nomenclature:
StiffClip LB is available for various stud depths. To specify, multiply stud depth by 100.
Example: 6” stud depth
Designate: StiffClip® LB600
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. StiffClip® LB can be found in the following Catalogs:
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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.
StiffClip® LB Downloads
StiffClip® LB Applications
The attachment of StiffClip LB to the primary structure may be made with PAF’s, screw/bolt anchors or weld and is dependent upon the base material (steel or concrete) and the design configuration.
Curtain Wall Slab Bypass as a Rigid Connection
Heavy Duty Curtain Wall Slab Bypass as a Rigid Connection
StiffClip® LB Installation Instructions
- Secure LB to pour stop with engineered attachment.
- Connect clip to stud with approved screws (not provided by TSN).
StiffClip® LB Allowable Loads
Load Table Notes:
- Design loads are for attachment of StiffClip LB to stud only. Load tables reflect in plane of wall loads (F1), horizontal loads (F2) and vertical loads (F3).
- Design loads consider loads on the clip and #12 screw fasteners to the stud web.
- 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 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 connection to the stud.
- Attachment to structure engineered by others.
- Allowable loads have not been increased for wind, seismic, or other factors.
- Allowable load tables incorporate eccentric loading of fasteners. Values with a welded connection may increase.
- Fasten with 3/4″ from the angle heel (centerline of the 1-1/2″ leg) to minimize eccentric load transfer.
- Strengthening ribs are present in 3-5/8″, 6″, and 8″ clip sizes. 10″ and 12″ clip sizes contain 1/2″ return lips on the top and bottom of the leg attaching to the stud for increased stiffness.
Screw Pattern Notes:
**Important Consideration: Pattern diagrams indicate fastener placement only. Standard StiffClip LB products come with 4 predrilled guide holes as depicted in Pattern 3 for LB362, LB600, and LB800 and depicted in Pattern 13 for LB1000 and LB1200. Alternate patterns can be utilized in the field or be accommodated as a TSN special part request. Contact TSN Sales for information regarding special part requests.
Load Direction
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
33mil (20ga), 50ksi
43mil (18ga), 33ksi
43mil (18ga), 50ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
F1 Load Direction
LB362
Pattern 1: 2 Screws95
138
124
179
156
225
284
405
741
F1 Load Direction
LB362
Pattern 2 or 3: 3 or 4 Screws190
276
248
358
312
450
568
741
741
F1 Load Direction
LB600
Pattern 1: 2 Screws95
138
124
179
156
225
284
405
536
F1 Load Direction
LB600
Pattern 2 or 3: 3 or 4 Screws190
276
248
358
312
450
536
536
536
F1 Load Direction
LB800(Standard 2″ Offset)
Pattern 1: 2 Screws95
138
124
179
156
182
182
182
182
F1 Load Direction
LB800(Standard 2″ Offset)
Pattern 2: 3 or 4 Screws182
182
182
182
182
182
182
182
182
F1 Load Direction
LB1000 - (Standard 2″ Offset) LB1200(Standard 2″ Offset)
Pattern 9: 2 Screws95
138
124
179
156
225
284
405
532
F1 Load Direction
LB1000 - (Standard 2″ Offset) LB1200(Standard 2″ Offset)
Pattern 10 or 11: 3 or 4 Screws190
276
248
358
312
450
532
532
532
F1 Load Direction
LB1000 (4" Offset)
Pattern 12: 4 Screws190
276
248
358
312
450
532
532
532
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
33mil (20ga), 50ksi
43mil (18ga), 33ksi
43mil (18ga), 50ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
F2 Load Direction
LB362, LB600, & LB800
Pattern 1: 2 Screws376
544
560
810
788
1,138
1,554
1,554
1,811
F2 Load Direction
LB362, LB600, & LB800
Pattern 2: 3 Screws410
593
610
883
859
1,240
1,694
1,694
1,811
F2 Load Direction
LB362, LB600, & LB800
Pattern 3: 4 Screws752
1,088
1,120
1,620
1,576
1,811
1,811
1,811
1,811
F2 Load Direction
LB1000 (Standard 2″ & 4" Offset)
LB1200 (Standard 2″ Offset)
LB1200 (Standard 2″ Offset)
Pattern 9: 2 Screws376
544
560
810
788
1,062
1,062
1,062
1,062
F2 Load Direction
LB1000 (Standard 2″ & 4" Offset)
LB1200 (Standard 2″ Offset)
LB1200 (Standard 2″ Offset)
Pattern 10: 3 Screws549
794
818
1,062
1,062
1,062
1,062
1,062
1,062
F2 Load Direction
LB1000 (Standard 2″ & 4" Offset)
LB1200 (Standard 2″ Offset)
LB1200 (Standard 2″ Offset)
Pattern 11: 4 Screws752
1,062
1,062
1,062
1,062
1,062
1,062
1,062
1,062
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
33mil (20ga), 50ksi
43mil (18ga), 33ksi
43mil (18ga), 50ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
F3 Load Direction
LB362
Pattern 1: 2 Screws235
340
350
506
493
711
971
971
2,662
F3 Load Direction
LB362
Pattern 2: 3 Screws340
492
507
733
713
1,030
1,406
1,406
2,662
F3 Load Direction
LB362
Pattern 3: 4 Screws468
677
697
1,008
981
1,417
1,935
1,935
2,662
F3 Load Direction
LB600
Pattern 1: 2 Screws216
313
322
466
453
654
894
894
1,792
F3 Load Direction
LB600
Pattern 2: 3 Screws301
435
448
648
630
910
1,243
1,243
1,792
F3 Load Direction
LB600
Pattern 3: 4 Screws431
623
641
927
902
1,303
1,779
1,779
1,792
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
33mil (20ga), 50ksi
43mil (18ga), 33ksi
43mil (18ga), 50ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
F3 Load Direction
LB800(Standard 2″ Offset)
Pattern 1: 2 Screws186
269
277
401
390
563
769
769
1,269
F3 Load Direction
LB800(Standard 2″ Offset)
Pattern 2: 3 Screws248
359
370
535
520
751
1,026
1,026
1,269
F3 Load Direction
LB800(Standard 2″ Offset)
Pattern 3: 4 Screws399
577
594
859
835
1,206
1,269
1,269
1,269
F3 Load Direction
LB800(Standard 2″ Offset)
Pattern 4: 6 Screws534
772
795
1,150
1,119
1,616
2,207
2,207
3,870
F3 Load Direction
LB800(Standard 2″ Offset)
Pattern 5: 10 Screws793
1,148
1,182
1,709
1,663
2,401
3,279
3,279
3,870
F3 Load Direction
LB800(Standard 4″ Offset)
Pattern 6: 4 Screws259
375
386
559
544
785
1,072
1,072
1,561
F3 Load Direction
LB800(Standard 4″ Offset)
Pattern 7: 6 Screws331
479
493
713
693
1,001
1,368
1,368
1,561
LB800(Standard 4″ Offset)
Pattern 8: 8 Screws417
604
622
899
875
1,263
1,561
1,561
1,561
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
33mil (20ga), 50ksi
43mil (18ga), 33ksi
43mil (18ga), 50ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
F3 Load Direction
LB1000 (Standard 2″ Offset)
Pattern 9: 2 Screws203
294
302
437
426
615
839
839
1,796
F3 Load Direction
LB1000 (Standard 2″ Offset)
Pattern 10: 3 Screws278
403
414
599
583
842
1,150
1,150
1,796
F3 Load Direction
LB1000 (Standard 2″ Offset)
Pattern 11: 4 Screws404
585
602
871
847
1,223
1,671
1,671
1,796
F3 Load Direction
LB1000 (Standard 4″ Offset)
Pattern 12: 4 Screws290
419
431
624
607
876
1,192
1,192
1,192
F3 Load Direction
LB1000 (Standard 4″ Offset)
Pattern 13: 6 Screws410
593
610
883
859
1,192
1,192
1,192
1,192
F3 Load Direction
LB1000 (Standard 4″ Offset)
Pattern 14: 10 Screws602
870
896
1,192
1,192
1,192
1,192
1,192
1,192
F3 Load Direction
LB1200 (Standard 2″ Offset)
Pattern 9: 2 Screws211
305
314
454
441
637
870
870
1,902
F3 Load Direction
LB1200 (Standard 2″ Offset)
Pattern 10: 3 Screws291
422
434
628
611
882
1,204
1,204
1,902
F3 Load Direction
LB1200 (Standard 2″ Offset)
Pattern 11: 4 Screws421
609
627
907
883
1,275
1,740
1,740
1,902
LB600-HD Notes:
- 1 Only two screws near clip support are considered effective
- Fasten within ¾” from the angle heel (centerline of the 1 ½” leg) to minimize eccentric load transfer.
- Guide holes for stud connection are 0.172″ diameter for #12 screws. Guide holes for structure connection are 0.375″ diameter for (2) ¼” concrete screws.
- StiffClip LB-HD resists both horizontal and vertical loads.
- Allowable loads have not been increased for wind, seismic, or other factors.
- 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 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.
- Torsional effects are considered on screw group for F2 & 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 connection to the stud.
Screw Pattern with #12 Screws
33mil (20ga), 33ksi
43mil (18ga), 33ksi
54mil (16ga), 33ksi
54mil (16ga), 50ksi
68mil (14ga), 50ksi
97mil (12ga), 50ksi
Maximum Allowable Clip Load
LB600-HD: F1, F2, & F3 Loads
F1
3-6 Screws191
248
312
450
567
809
857
LB600-HD: F1, F2, & F3 Loads
F2
3 Screws524
780
1,096
1,130
1,130
1,130
1,130
LB600-HD: F1, F2, & F3 Loads
F2
4 Screws754
1,122
1,130
1,130
1,130
1,130
1,130
LB600-HD: F1, F2, & F3 Loads
F2
6 Screws1,130
1,130
1,130
1,130
1,130
1,130
1,130
LB600-HD: F1, F2, & F3 Loads
F3
3 Screws318
474
666
962
1,361
1,435
1,966
LB600-HD: F1, F2, & F3 Loads
F3
4 Screws450
670
942
1,361
1,924
1,966
1,966
LB600-HD: F1, F2, & F3 Loads
F3
6 Screws599
892
1,254
1,811
1,966
1,966
1,966
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