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FC Bypass Framing Fixed-Clip Connector

FC

Ideal for high-seismic areas, Simpson Strong-Tie® FC connectors are the optimal solution for fixed-clip bypass framing. FC clips are often welded to the structure in high-seismic zones, but they also feature anchorage holes so that concrete screws or powder-actuated fasteners can be used to attach the clip to the structure. In addition to its anchorage versatility, the FC clip features prepunched screw holes for the framing attachment, eliminating the need for predrilling holes or worrying that fastener placement doesn’t match the Designer specifications. FC connectors are manufactured using heavy-duty 10- and 12-gauge steel to provide exceptional resistance to in-plane seismic load.

Key Features

  • The clips come in lengths of 3 1/2", 6" and 8" and are intended to be used with 3 5/8", 6" and 8" studs, respectively 
  • The maximum standoff distance is 1" for 3 5/8" studs and 1 1/2" for 6" and 8" studs
  • Embossments in the bendline provide increased strength and stiffness in the F1 and F2 load directions, but are positioned towards the center of the clip so that 1 1/2"-long welds can be applied at the top and bottom of the clip
  • Prepunched large-diameter anchor holes accommodate 1/4"-diameter concrete screws like the Simpson Strong-Tie Titen HD® screw anchor
  • Prepunched small-diameter anchor holes accommodate powder-actuated fasteners like the 0.157"-diameter Simpson Strong-Tie PDPAT or #12 self-drilling Simpson Strong-Tie Strong-Drive® XL Large-Head Metal screw

Material

  • 50 ksi

Finish

  • Galvanized (G90)

Installation

  • Use the specified type and number of fasteners and anchors

Related Literature

Ordering Information and Dimensions
Model Ordering SKU Thickness mil (ga.) L (in.) A (in.) B (in.)
FC32-5/97 FC32-5/97-KT25 97 (12) 3 1/2 1/2 1/2
FC62-5/97 FC62-5/97-KT25 97 (12) 6 1 1
FC62-5/118 FC62-5/118-KT25 118 (10) 6 1 1
FC82-5/118 FC82-5/118-KT25 118 (10) 8 1 1
Note: Each box contains (25) connectors.
FC Allowable Connector Loads (lb.)
Model No. Stud Thickness mil (ga.) Fasteners to Stud Allowable Loads
Allowable Pullout Per Single #10 Screw No. of #10 Self-Drilling Screws F1 F2 F3 F4
1" Stand-Off 1 1/2" Stand-Off
FC32-5/97 33 (20) 85 4 165 705 1,130 705
6 225 1,060 1,355 1,060
FC62-5/97 4 115 130 705 1,130 705
6 140 160 1,060 1,355 1,060
FC62-5/118 4 115 130 705 1,130 705
6 140 160 1,060 1,355 1,060
FC82-5/118 4 105 120 705 1,130 705
6 135 155 1,060 1,355 1,060
FC32-5/97 43 (18) 110 4 215 1,050 1,470 1,050
6 290 1,580 1,765 1,580
FC62-5/97 4 150 175 1,050 1,470 1,050
6 185 215 1,580 1,765 1,580
FC62-5/118 4 150 175 1,050 1,470 1,050
6 185 215 1,580 1,765 1,580
FC82-5/118 4 140 160 1,050 1,470 1,050
6 175 200 1,580 1,765 1,580
FC32-5/97 54 (16) 200 4 395 2,135 2,885 2,045
6 530 2,690 2,885 2,195
FC62-5/97 4 325 375 2,135 2,885 2,045
6 405 465 2,690 2,885 2,195
FC62-5/118 4 345 395 2,135 2,885 2,045
6 370 425 3,205 2,885 2,195
FC82-5/118 4 325 375 2,135 2,885 2,045
6 440 505 3,205 2,885 2,195
FC32-5/97 68 (14) 250 4 495 2,160 2,885 2,045
6 670 2,690 2,885 2,195
FC62-5/97 4 435 500 2,160 2,885 2,045
6 465 535 2,690 2,885 2,195
FC62-5/118 4 435 500 2,160 2,885 2,045
6 465 535 3,240 3,780 2,195
FC82-5/118 4 410 470 2,160 2,885 2,045
6 555 640 3,240 3,780 2,195
FC32-5/97 97 (12) 355 4 710 2,160 2,885 2,045
6 955 2,690 2,885 2,195
FC62-5/97 4 775 775 2,160 2,885 2,045
6 1295 1295 2,690 2,885 2,195
FC62-5/118 4 775 775 2,160 2,885 2,045
6 1150 1150 3,240 3,780 2,195
FC82-5/118 4 585 585 2,160 2,885 2,045
6 790 790 3,240 3,780 2,195
  1. FC Allowable Connector Loads are also limited by the FC Anchorage Load tables below. Use the minimum tabulated values from the connector and anchorage load tables as applicable.
  2. Tabulated F1 loads are based on assembly tests with the load through the centerline of stud.Tested failure modes were due to screw pullout; therefore compare F1 against FP calculated per ASCE 7-10 Chapter 13 with aP=1.25 and Rp=1.0.
  3. F1 loads are based on maximum stand-off distances of 1" or 1 1/2" as shown. Other loads are applicable to a 1" stand-off for FC32 and 1" or 1 1/2" stand-off for FC62 and FC82.
  4. The allowable plastic moment at the bend line in the F1 load direction for 97 mil (12 ga.) and 118 mil (10 ga.) FC connectors are 395 in.-lb. and 675 in.-lb., respectively.
FC Allowable Anchorage Loads to Steel (lb.)
Anchorage Type Minimum Base Material No. of Anchors Allowable Loads
F1 F2 and F3 F4
#12 Self-Drilling Screws Simpson Strong-Tie® X Metal Screws XQ1B1214, X1B1214 A36 Steel 3/16" thick 4 2,070 2,200
Strong-Drive® XL Large-Head #12-24 x 1 1/4" Metal Screws XLQ114T1224, XLQ114B1224 A36 Steel 3/16" thick 4 2,545 2,545
#14 Self-Drilling Screws Simpson Strong-Tie E Metal Screw E1B1414 A36 Steel 3/16" thick 4 2,620 2,610
Simpson Strong-Tie 0.157" x 5/8" Powder-Actuated Fasteners PDPAT-62KP A36 Steel 3/16" thick 4 1,040 1,040
Simpson Strong-Tie 0.157" x 5/8" Powder-Actuated Fasteners PDPAT-62KP A572 Gr. 50 or A992 Steel 3/16" thick 4 1,710 1,710
Welded E70XX electrodes A36 Steel 3/16" thick Hard Side: 3" 2,040 3,710 4,330
Free Side: 3"
  1. Allowable anchorage loads are also limited by the FC Connector Load table above. Use the minimum tabulated values from the connector and anchorage load tables as applicable.
  2. Allowable loads for Simpson Strong-Tie PDPAT-62KP powder-actuated "tophat" fasteners also apply to alternate fasteners with a minimum shank of 0.157", a minimum head diameter of 0.300", a minimum allowable shear of 410 lb. and allowable tension of 260 lb. for A36 steel, and a minimum allowable shear of 420 lb. and allowable tension of 305 lb. for A572 Gr. 50 or A992 steel per ICC-ES ESR-2138. "Tophat" fasteners are recommended to ensure adequate clamping force and consistent installations.
  3. For screw fastener installation into steel backed by concrete, predrilling of both the steel and the concrete will be required. For predrilling, use a maximum 3/16" dia. drill bit.
FC Allowable Anchorage Loads for Concrete (lb.)
Simpson Strong-Tie 1/4" Titen HD Screw Anchor Nominal Embed (in.) Anchor Quantity and Size f'c (psi) Load Direction Wind and Seismic in SDC A and B Seismic in SDC C through F
Uncracked Concrete Cracked Concrete Cracked Concrete 6
THDB25178H 1 5/8 (2) 1/4" x 1 7/8" 3,000 F1 335 240 280
F2 and F3 660 630 550
F4 565 405 470
4000 F1 390 280 325
F2 and F3 760 725 635
F4 655 465 545
THDB25234H 2 1/2 (2) 1/4" x 2 3/4" 3,000 F1 370 265 310
F2 and F3 475 695 610
F4 515 445 520
4000 F1 430 305 360
F2 and F3 550 805 705
F4 590 515 600
  1. Allowable anchor capacities have been determined using ACI 318 Appendix D calculations with a minimum concrete compressive strength (f'c) of 3,000 and 4,000 psi in normal-weight concrete. Tabulated values shall be multiplied by a factor (λa) of 0.6 for sand light-weight concrete.
  2. Edge distance is assumed to be 1 1/2", and end distance is 2 5/8".
  3. Load values are for group anchors based on ACI 318, condition B, load factors from ACI 318 Section 9.2, no supplement edge reinforcement, Ψc, v = 1.0 for cracked concrete and periodic special inspection.
  4. Allowable Stress Design (ASD) values were determined by multiplying calculated LRFD capacities by a conversion factor, Alpha (α), of 0.70 for seismic load and 0.6 for wind loads. ASD values for other combinations may be determined using alternate conversion factors.
  5. Tabulated allowable ASD loads for Wind and Seismic in SDC A and B are based on using wind conversion factors and may be increased by 1.17 for SDC A and B only.
  6. Design loads shall include the over-strength factor per ASCE7 Section 12.4.3. For fasteners in exterior wall connection systems, Ωo = 1.5 per Table 13.5-1.
  7. Allowable loads for F4 are based on the governing loading direction which is toward the edge of slab.
  8. Allowable loads for F1 are based on the governing loading direction which is toward the end of slab.
  9. For anchor subjected to both tension and shear loads, it shall be designed to satisfy the following:
    • For Na / Nall ≤ 0.2, the full allowable load in shear is permitted.
    • For Va / Vall ≤ 0.2, the full allowable load in tension is permitted.
    • For all other cases: Na / Nall + Va / Vall ≤ 1.2 where:

    Na = Applied ASD tension load

    Nall = Allowable F2 or F3 load from the FC Allowable Anchorage Loads for Concrete table

    Va = Applied ASD shear load

    Vall = Allowable F4 or F1 load from the FC Allowable Anchorage Loads for Concrete table

  10. Tabulated allowable loads are based on anchorage only. The capacity of the connection system shall be the minimum of the allowable anchorage load and the FC Allowable Connector Loads.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
FC32-5/97No code listing: Please contact us for test data.
FC62-5/118No code listing: Please contact us for test data.
FC62-5/97No code listing: Please contact us for test data.
FC82-5/118No code listing: Please contact us for test data.

Drawings

Part Orthographic Perspective
FC32-5/97
FC32-5/97 bottom view
DWG DXF
FC32-5/97 front view
DWG DXF
FC32-5/97 left view
DWG DXF
FC32-5/97 right view
DWG DXF
FC32-5/97 top view
DWG DXF
FC32-5/97
DWG DXF
FC62-5/118
FC62-5/118 bottom view
DWG DXF
FC62-5/118 front view
DWG DXF
FC62-5/118 left view
DWG DXF
FC62-5/118 right view
DWG DXF
FC62-5/118 top view
DWG DXF
FC62-5/118
DWG DXF
FC62-5/97
FC62-5/97 bottom view
DWG DXF
FC62-5/97 front view
DWG DXF
FC62-5/97 left view
DWG DXF
FC62-5/97 right view
DWG DXF
FC62-5/97 top view
DWG DXF
FC62-5/97
DWG DXF
FC82-5/118
FC82-5/118 bottom view
DWG DXF
FC82-5/118 front view
DWG DXF
FC82-5/118 left view
DWG DXF
FC82-5/118 right view
DWG DXF
FC82-5/118 top view
DWG DXF
FC82-5/118
DWG DXF