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StiffClip® RT

StiffClip® RT series secures and ties down roof framing members. StiffClip’s unique shape incorporates stiffened legs to increase compressive strength and resist horizontal, lateral, and uplift loads. The allowable design load table shown is based on the use of StiffClip as it is attached to various steel stud material thicknesses and yield strengths. Design loads consider loads on the clip and the use of #12 screw fasteners relative to the framing material.
Features
  • Stiffened ribs for added strength
  • Guide holes for attachment to framing members (0.188” dia.)
  • Engineered for steel members
  • Structurally load tested
  • Meets all building code criteria
Order Information
Designation Qty/Box Lbs/Box Qty/Skid Lbs/Skid
RT650-33 50 (pair) 15 2,000 600
RT650-43 50 (pair) 18 2,000 720
RT650-54 50 (pair) 22 2,000 880
RT1300-33 100 29 2,000 580
RT1300-43 100 35 2,000 700
RT1300-54 100 43 2,000 860

 

Nomenclature

StiffClip RT650 is 6½” long, and may be used when wall studs do not align with roof framing member. The RT1300 is 13″ long, and is used when wall studs align with roof framing member. Clips are designated by length, followed by thickness and number of screws used in each leg (determined by load requirements – refer to load tables).

Example: Stud aligns with roof framing member (see application image)
Designate: StiffClip® 1300

* StiffClip RT650 are packaged in pairs. (shown right)

Material Composition

33 mil & 43mil Thicknesses: ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, with ASTM A653/A653M G60 (Z180) hot dipped galvanized coating.

54 mil Thickness: ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 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® RT 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.

StiffClip RT650 - Roof Tie - L&R Pair
StiffClip RT650 - Roof Tie - Left
StiffClip RT650 - Roof Tie - Left Back

StiffClip® RT Downloads

Tech Sheet

Specification

Detail DWG

BIM Object

StiffClip® RT Applications

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

StiffClip RT650 Application

StiffClip RT650 Roof Tie Application

StiffClip RT1300 Application

StiffClip RT1300 - Roof Tie Application

Installation Instructions

  1. To install the StiffClip RT, place one end flush against the roof framing member with the other end abutting the wall framing member.
  2. Attachment includes 2 or 4 screws in the upper and lower parts of each StiffClip RT.

Allowable Loads

StiffClip® RT, Recommended Allowable Load (lbs): F1
Stud RT650-33 & RT1300-33 RT650-43 & RT1300-43 RT650-54 & RT1300-54
Thickness Mils (ga) Yield Strength (ksi) w/2 #12 Screws w/4 #12 Screws w/2 #12 Screws w/4 #12 Screws w/2 #12 Screws w/4 #12 Screws
33 (20) 33 94 95 94 95 94 95
33 (20) 50 136 138 136 138 136 138
43 (18) 33 124 124 124 124 124 124
43 (18) 50 175 175 179 179 179 179
54 (16) 33 156 156 156 156 156 156
54 (16) 50 175 175 225 225 225 225
68 (14) 50 175 175 231 231 284 284
97 (12) 50 175 175 231 231 342 342
Maximum Allowable Clip Load 175 231 342

 

StiffClip® RT, Recommended Allowable Load (lbs): F2
Stud RT650-33 RT650-33 & RT1300-33 RT650-43 RT650-43 & RT1300-43 RT650-54 RT650-54 & RT1300-54
Thickness Mils (ga) Yield Strength (ksi) w/5 #12 Screws in Short Leg w/2 #12 Screws w/4 #12 Screws w/5 #12 Screws in Short Leg w/2 #12 Screws w/4 #12 Screws w/5 #12 Screws in Short Leg w/2 #12 Screws w/4 #12 Screws
33 (20) 33 191 95 128 191 95 159 191 95 191
33 (20) 50 239 128 128 275 138 159 275 138 275
43 (18) 33 239 124 128 248 124 159 248 124 248
43 (18) 50 239 128 128 329 159 159 359 179 323
54 (16) 33 239 128 128 312 156 159 312 156 312
54 (16) 50 239 128 128 329 159 159 450 225 323
68 (14) 50 239 128 128 329 159 159 567 284 323
97 (12) 50 239 128 128 329 159 159 614 323 323
Maximum Allowable Clip Load 239 128 329 159 614 323

 

StiffClip® RT, Recommended Allowable Load (lbs): F3
Stud RT650-33 & RT1300-33 RT650-43 & RT1300-43 RT650-54 & RT1300-54
Thickness Mils (ga) Yield Strength (ksi) w/2 #12 Screws w/4 #12 Screws w/2 #12 Screws w/4 #12 Screws w/2 #12 Screws w/4 #12 Screws
33 (20) 33 198 358 198 383 198 383
33 (20) 50 286 358 286 386 286 554
43 (18) 33 295 358 295 386 295 570
43 (18) 50 358 358 386 386 426 809
54 (16) 33 358 358 386 386 415 802
54 (16) 50 358 358 386 386 599 809
68 (14) 50 358 358 386 386 753 809
97 (12) 50 358 358 386 386 753 809
Maximum Allowable Clip Load 358 386 809

Load Directions:
F1 = Lateral F2 = Horizontal F3 = Uplift

  • StiffClip RT resists horizontal, lateral, and uplift loads.
  • Allowable loads have not been increased for wind, seismic, or other factors.
  • Number of screws designated represents the amount required in each leg of the clip.
  • 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.
  • Torsional effects are considered on screw groups for F1, 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.
StiffClip RT Load Directions

Load Direction

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