StiffClip® WC
Features
- Stiffened ribs for added strength (use varies with each clip)
- Guide holes for attachment to framing members (0.172” dia.)
- No time and expense spent cutting steel shapes
- Structurally load tested
- Meets all building code criteria
Order Information
Designation | Qty/Box | Lbs/Box | Qty/Skid | Lbs/Skid |
WC350-54, 10″ lg | 100 | 56 | 4,500 | 2,555 |
WC350-118, 10″ lg | 50 | 62 | 2,250 | 2,852 |
WC550-54, 13″ lg | 50 | 58 | 1,600 | 1,891 |
WC550-118, 13″ lg | 25 | 63 | 800 | 2,051 |
WC750-54, 16″ lg | 25 | 48 | 1,500 | 2,915 |
WC750-118, 16″ lg | 12 | 51 | 720 | 3,095 |
Nomenclature
StiffClip WC is designated by multiplying stud depth in inches by 100, then listing material, thickness and length.
Example: 3½” stud depth, 54mil steel thickness, 10″ long
Designate: StiffClip® WC350-54 10″
Material Composition
54mil: ASTM A1003/A1003M Structural Grade 40 (275) Type H, ST40H (ST275H): 40ksi (275MPa) minimum yield strength, 55ksi (380MPa) minimum tensile strength, 54mil minimum thickness (16 gauge, 0.0566″ design thickness) with ASTM A653/A653M G90 (Z275) hot dipped galvanized coating.
118mil: ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 118mil minimum thickness (10 gauge, 0.1242″ design thickness) with ASTM A653/A653M G90 (Z275) hot dipped galvanized coating.
Catalogs
For a full list of our product catalogs, specification sections, inspection checklists, and research reports please click here.
StiffClip® WC Downloads
StiffClip® WC Applications
Installation Instructions
- Place StiffClip WC at web of each framing member.
- Attach StiffClip WC to framing member with required screws through guide holes
Allowable Loads
StiffClip® WC, Recommended Allowable Load (lbs) | |||||||||
Stud | WC350-54, 10″ lg | WC350-118, 10″lg | |||||||
Max Thickness (Web or Chord) Mils (ga) | Yield Strength (ksi) | w/2 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws | w/2 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws |
33 | 33 | 167 | 246 | 398 | 1,300 | 377 | 754 | 1,130 | 1,507 |
33 | 50 | 167 | 246 | 398 | 1,300 | 544 | 1,089 | 1,633 | 2,178 |
43 | 33 | 167 | 246 | 398 | 1,300 | 561 | 1,122 | 1,682 | 2,243 |
43 | 50 | 167 | 246 | 398 | 1,300 | 810 | 1,620 | 2,431 | 3,241 |
54 | 33 | 167 | 246 | 398 | 1,300 | 789 | 1,577 | 2,366 | 3,154 |
54 | 50 | 167 | 246 | 398 | 1,300 | 1,139 | 1,817 | 2,944 | 4,556 |
68 | 50 | 167 | 246 | 398 | 1,300 | 1,232 | 1,817 | 2,944 | 5,275 |
97 | 50 | 167 | 246 | 398 | 1,300 | 1,232 | 1,817 | 2,944 | 5,275 |
Max Allowable Clip Load | 1,300* | 5,275* |
StiffClip® WC, Recommended Allowable Load (lbs) | ||||||||||
Stud | WC550-54, 13″lg | WC550-118, 13″ lg | ||||||||
Max Thickness (Web or Chord) Mils (ga) | Yield Strength (ksi) | w/2 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws | w/10 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws | w/10 #12 Screws |
33 | 33 | 82 | 118 | 184 | 327 | 737 | 754 | 1,130 | 1,507 | 1,884 |
33 | 50 | 82 | 118 | 184 | 327 | 737 | 1,089 | 1,633 | 2,178 | 2,722 |
43 | 33 | 82 | 118 | 184 | 327 | 737 | 1,122 | 1,682 | 2,243 | 2,804 |
43 | 50 | 82 | 118 | 184 | 327 | 737 | 1,249 | 1,951 | 3,241 | 4,051 |
54 | 33 | 82 | 118 | 184 | 327 | 737 | 1,249 | 1,951 | 3,154 | 3,943 |
54 | 50 | 82 | 118 | 184 | 327 | 737 | 1,249 | 1,951 | 3,469 | 5,695 |
68 | 50 | 82 | 118 | 184 | 327 | 737 | 1,249 | 1,951 | 3,469 | 7,774 |
97 | 50 | 82 | 118 | 184 | 327 | 737 | 1,249 | 1,951 | 3,469 | 7,774 |
Max Allowable Clip Load | 737** | 7,774** |
StiffClip® WC, Recommended Allowable Load (lbs) | |||||||||||
Stud | WC750-54, 16″lg | WC750-118, 16″lg | |||||||||
Max Thickness (Web or Chord) Mils (ga) | Yield Strength (ksi) | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws | w/10 #12 Screws | w/12 #12 Screws | w/4 #12 Screws | w/6 #12 Screws | w/8 #12 Screws | w/10 #12 Screws | w/12 #12 Screws |
33 | 33 | 112 | 161 | 251 | 447 | 1,005 | 754 | 1,130 | 1,507 | 1,884 | 2,261 |
33 | 50 | 112 | 161 | 251 | 447 | 1,005 | 1,089 | 1,633 | 2,178 | 2,722 | 3,266 |
43 | 33 | 112 | 161 | 251 | 447 | 1,005 | 1,122 | 1,682 | 2,243 | 2,804 | 3,365 |
43 | 50 | 112 | 161 | 251 | 447 | 1,005 | 1,183 | 1,703 | 2,661 | 4,051 | 4,861 |
54 | 33 | 112 | 161 | 251 | 447 | 1,005 | 1,183 | 1,703 | 2,661 | 4,731 | 6,834 |
54 | 50 | 112 | 161 | 251 | 447 | 1,005 | 1,183 | 1,703 | 2,661 | 4,731 | 6,834 |
68 | 50 | 112 | 161 | 251 | 447 | 1,005 | 1,183 | 1,703 | 2,661 | 4,731 | 9,662 |
97 | 50 | 112 | 161 | 251 | 447 | 1,005 | 1,183 | 1,703 | 2,661 | 4,731 | 10,188 |
Max Allowable Clip Load | 1,005** | 10,601** |
Notes:
- Allowable design loads apply to tension or compression on StiffClip WC utilizing the fastener patterns shown.
- Allowable loads have not been increased for wind, seismic, or other factors.
- All guide holes may not require fasteners. Number and size of fasteners used is based on fastener manufacturer’s allowable load data, and is to be determined by designer.
- Use of strengthening ribs varies with each clip.
* Load based on structural test.
** Load based on calculations.