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 90o angle to increase bending strength. StiffClip LB resists horizontal and vertical loads. The allowable design load table shown below is based on the use of StiffClip LB as it is attached to various steel stud depths, material thicknesses and yield strengths. Design loads consider loads on the clip and #12 screw fasteners to the stud web. Pre-drilled guide holes in each leg allow for greater installation efficiency.
Value
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
The attachment of StiffClip 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.
Designation | Qty/Box | Lbs/Box | Qty/Skid | Lbs/Skid |
LB362/400 | 50 | 26 | 4,500 | 2,340 |
LB600 | 50 | 38 | 4,500 | 3,420 |
LB800 | 50 | 48 | 2,000 | 1,920 |
LB1000 | 25 | 28 | 1,125 | 1,260 |
LB1200 | 25 | 33 | 1,125 | 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
StiffClip® LB, Recommended Allowable Load (lbs): F1 | |||||
Stud | LB362 | LB600 | LB800 (Standard 2" Offset) |
LB1000 (Standard 2" & 4" Offset) LB1200 (Standard 2" Offset) |
|
Thickness Mils (ga) | Yield Strength (ksi) | w/3 #12 Screws | w/3-4 #12 Screws | w/3 #12 Screws | w/3 #12 Screws |
Pattern 2 | Patterns 2 & 3 | Pattern 4 | Pattern 12 | ||
33 (20) | 33 | 190 | 191 | 190 | 190 |
33 (20) | 50 | 275 | 275 | 275 | 275 |
43 (18) | 33 | 248 | 248 | 248 | 248 |
43 (18) | 50 | 359 | 359 | 322 | 359 |
54 (16) | 33 | 312 | 312 | 322 | 312 |
54 (16) | 50 | 450 | 450 | 322 | 450 |
68 (14) | 50 | 568 | 536 | 322 | 532 |
97 (12) | 50 | 768 | 536 | 322 | 532 |
Maximum Allowable Clip Load | 768 | 536 | 322 | 532 |
StiffClip® LB, Recommended Allowable Load (lbs): F2 | ||||||||
Stud | LB362 & LB600 | LB800 (Standard 2" Offset) |
LB1000 & LB1200 (Standard 2" Offset) |
|||||
Thickness Mils (ga) | Yield Strength (ksi) | w/2 #12 Screws | w/3 #12 Screws | w/4 #12 Screws | w/3 #12 Screws | w/4 #12 Screws | w/3 #12 Screws | w/4 #12 Screws |
Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 12 | Pattern 13 | ||
33 (20 | 33 | 376 | 565 | 752 | 565 | 752 | 565 | 752 |
33 (20) | 50 | 544 | 817 | 1,089 | 817 | 1,089 | 816 | 1,062 |
43 (18) | 33 | 560 | 841 | 1,120 | 841 | 1,120 | 840 | 1,062 |
43 (18) | 50 | 810 | 1,215 | 1,620 | 1,215 | 1,620 | 1,062 | 1,062 |
54 (16) | 33 | 788 | 1,183 | 1,576 | 1,183 | 1,576 | 1,062 | 1,062 |
54 (16) | 50 | 1,138 | 1,709 | 1,954 | 1,709 | 1,954 | 1,062 | 1,062 |
68 (14) | 50 | 1,610 | 1,954 | 1,954 | 1,954 | 1,954 | 1,062 | 1,062 |
97 (12) | 50 | 1,698 | 1,954 | 1,954 | 1,954 | 1,954 | 1,062 | 1,062 |
Maximum Allowable Clip Load | 1,954 | 1,954 | 1,062 |
StiffClip® LB, Recommended Allowable Load (lbs): F3 | |||||||
Stud | LB362 | LB600 (Standard 1" Offset) | |||||
Thickness Mils (ga) | Yield Strength (ksi) | w/2 #12 Screws | w/3 #12 Screws | w/4 #12 Screws | w/2 #12 Screws | w/3 #12 Screws | w/4 #12 Screws |
Pattern 1 | Pattern 2 | Pattern 3 | Pattern 1 | Pattern 2 | Pattern 3 | ||
33 (20) | 33 | 235 | 350 | 468 | 251 | 377 | 503 |
33 (20) | 50 | 340 | 506 | 678 | 362 | 544 | 727 |
43 (18) | 33 | 350 | 522 | 697 | 373 | 561 | 749 |
43 (18) | 50 | 506 | 753 | 1,009 | 539 | 810 | 1,082 |
54 (16) | 33 | 493 | 733 | 981 | 524 | 789 | 1,053 |
54 (16) | 50 | 711 | 1,059 | 1,417 | 757 | 1,139 | 1,521 |
68 (14) | 50 | 1,006 | 1,498 | 2,004 | 1,071 | 1,610 | 1,792 |
97 (12) | 50 | 1,061 | 1,579 | 2,114 | 1,129 | 1,698 | 1,792 |
Maximum Allowable Clip Load | 2,658 | 1,792 |
StiffClip® LB, Recommended Allowable Load (lbs): F3 | ||||||||
Stud | LB800 (Standard 2" Offset) | LB800 (4" Offset) | ||||||
Thickness Mils (ga) | Yield Strength (ksi) | w/3 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/10 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws |
Pattern 4 | Pattern 5 | Pattern 6 | Pattern 7 | Pattern 8 | Pattern 9 | Pattern 10 | ||
33 (20) | 33 | 320 | 370 | 534 | 793 | 259 | 331 | 417 |
33 (20) | 50 | 463 | 536 | 773 | 1,149 | 376 | 479 | 604 |
43 (18) | 33 | 477 | 552 | 795 | 1,182 | 386 | 493 | 622 |
43 (18) | 50 | 689 | 798 | 1,150 | 1,710 | 559 | 713 | 899 |
54 (16) | 33 | 670 | 776 | 1,119 | 1,663 | 544 | 693 | 875 |
54 (16) | 50 | 968 | 1,121 | 1,616 | 2,401 | 785 | 1,001 | 1,263 |
68 (14) | 50 | 1,369 | 1,586 | 2,286 | 3,397 | 1,111 | 1,417 | 1,561 |
97 (12) | 50 | 1,443 | 1,673 | 2,411 | 3,583 | 1,172 | 1,494 | 1,561 |
Maximum Allowable Clip Load | 3,863 | 1,561 |
StiffClip® LB, Recommended Allowable Load (lbs): F3 | ||||||||||
Stud | LB1000 (Standard 2" Offset) | LB1000 (4" Offset) | LB1200 (Standard 2" Offset) | |||||||
Thickness Mils (ga) | Yield Strength (ksi) | w/2 #12 Screws | w/3 #12 Screws | w/4 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/10 #12 Screws | w/2 #12 Screws | w/3 #12 Screws | w/4 #12 Screws |
Pattern 11 | Pattern 12 | Pattern 13 | Pattern 14 | Pattern 15 | Pattern 16 | Pattern 11 | Pattern 12 | Pattern 13 | ||
33 (20) | 33 | 203 | 364 | 406 | 290 | 410 | 602 | 211 | 381 | 421 |
33 (20) | 50 | 294 | 525 | 588 | 419 | 593 | 871 | 305 | 550 | 610 |
43 (18) | 33 | 302 | 541 | 605 | 431 | 610 | 896 | 314 | 566 | 627 |
43 (18) | 50 | 438 | 782 | 875 | 624 | 883 | 1,192 | 454 | 818 | 907 |
54 (16) | 33 | 426 | 761 | 851 | 607 | 859 | 1,192 | 441 | 796 | 883 |
54 (16) | 50 | 615 | 1,099 | 1,229 | 876 | 1,192 | 1,192 | 637 | 1,150 | 1,275 |
68 (14) | 50 | 869 | 1,554 | 1,739 | 1,192 | 1,192 | 1,192 | 902 | 1,627 | 1,803 |
97 (12) | 50 | 917 | 1,639 | 1,793 | 1,192 | 1,192 | 1,192 | 951 | 1,715 | 1,899 |
Maximum Allowable Clip Load | 1,793 | 1,192 | 1,899 |
Notes:
Screw Patterns
* Important Consideration: Pattern diagrams indicate fastener placement only. Each standard StiffClip LB product comes with 4 predrilled guide holes shown in Patterns 1, 2, & 3. Alternate patterns can be implemented in the field or requested from TSN as a custom part.
Load Direction
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 and the rest of TSN's Rigid Connection Product Line 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.