SCB/MSCB Bypass Framing Slide-Clip Connectors
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Product Details
The SCB/MSCB slide-clip connectors are high-performance connectors for bypass framing applications designed to reduce design time and overall installed cost. Various anchorage methods have been tested, and the resulting allowable loads eliminate the need to design connector anchorage. The SCB/MSCB can accommodate applications that typically require two parts with a single connector, reducing material and labor cost. These connectors are manufactured in five different lengths to accommodate a variety of standoff conditions and steel-stud sizes.
Key Features
- Provides a full 1" of both upward and downward movement
- The precision-manufactured shouldered screws provided with the SCB/MSCB connector are designed to prevent overdriving and to ensure the clip functions properly
- Strategically placed stiffeners, embossments and anchor holes maximize connector performance
- Simpson Strong-Tie "No-Equal" stamps mark the center of the slots to help ensure correct shouldered-screw placement
Material
- SCB — 54 mil (16 ga.); MSCB — 68 mil (14 ga.)
Finish
- Galvanized (G90)
Installation
- Use the specified type and number of anchors.
- Use the specified number of XLSH34B1414 #14 shouldered screws (included). Install shouldered screws in the slots adjacent to the “No-Equal” stamp.
- Use a maximum of 1 screw per slot.
Ordering Information
SCB43.5-KT contains:
- 25 connectors
- (55) XLSH34B1414 #14 shouldered screws
SCB45.5-KT, MSCB45.5-KT, SCB47.5-KT, MSCB47.5-KT, SCB49.5-KT, and SCB411.5-KT contain:
- 25 connectors
- (83) XLSH34B1414 #14 shouldered screws
Note: Replacement #14 shouldered screws for SCB/MSCB connectors are XLSH34B1414-RP83
Related Literature
Load Tables
SCB/MSCB Allowable Connector Loads
- When the SCB or MSCB connector is used with two shouldered screws, the screws may be installed in any two slots.
- Allowable loads are based on clips installed with (4) #12-14 screws in the anchor leg. For other anchorage installations, the capacity of the connection system will be the minimum of the tabulated value and the allowable load from the SCB/MSCB Allowable Anchorage Loads table below.
- Anchorage to the supporting structure using welds or a minimum of (2) #12-24 self-drilling screws is required.
- Allowable loads are based on in-plane loads applied to the stud fasteners that are nearest the support with complete rotational restraint at the studs. For a more extensive treatment of in-plane loads please refer to Simpson Strong-Tie engineering letter L-CF-CWCF1DIR17.
- Reference tables below for for LRFD design strengths.
SCB/MSCB Allowable Anchorage Loads
- For additional important information, see General Information.
- Allowable loads are for clip anchorage only. The capacity of the connection system will be the minimum of the tabulated allowable anchorage loads the allowable load from the SCB/MSCB Allowable Connector Load table above.
- Allowable loads for #12-24 self-drilling screws and PDPAT powder-actuated fasteners are based on installation in minimum 3/16" thick structural steel with Fy = 36 ksi. PDPAT values are also provided for A572 steel. Values listed above maybe used where other thicknesses of steel are encountered provided that the fastener has equal or better tested values into thicker steel (General Information). It is the responsibility of the Designer to select the proper length fasteners based on the steel thickness installation.
- For screw fastener installation into steel backed by concrete, predrilling of both the steel and the concrete is suggested. For predrilling use a maximum 3/16"-diameter drill bit.
SCB/MSCB Bypass Framing Slide-Clip Connector — Service Load Limits, LRFD Design Strengths and Nominal Strengths
- Tabulated values are for the connector and attachment to the stud-wall framing. The assembly strengths are the minimum of those listed and the anchorage values listed in the Anchor Values table below.
- Service Load Limit is the load at 1/8" deflection for use in evaluating the performance under service-level loads.
- LRFD Design Strength is the Nominal Strength multiplied by a resistance factor, φ.
- Nominal Strength is defined in AISI S100-07.
Anchor Values (lb.) in the F2 and F3 Direction for SCB, FCB, MSCB and SSB
- Tabulated values are for the anchorage only. The assembly strengths are the minimum of those listed above and the connector capacity and attachment to the stud-wall framing listed in the SCB/MSCB Service Load Limits, LRFD Design Strengths and Nominal Strengths table above.
- LRFD Design Strength is the Nominal Strength multiplied by a resistance factor, φ.
- Nominal Strength is defined in AISI S100-07.
- For the Service Load Limit, use the values listed for the connectors in the SCB/MSCB Service Load Limits, LRFD Design Strengths and Nominal Strengths table above.
Curtain-Wall Connector Stand-Off Distances
- The stand-off is the distance from the interior flange of the stud to the face of the supporting structure. All dimensions assume fasteners are installed a minimum of 1/2" from the edge of stud, and the connector does not extend beyond the exterior flange of the stud; "—" designates conditions where fastener pattern will not fit on stud.
- A tabulated maximum stand-off of 12 1/4" is based on three anchors. For two anchors, maximum stand-off is 13 1/4".
- A tabulated maximum stand-off of 11" is based on three anchors. For two anchors, maximum stand-off is 12".
- For FCB fixed connectors, minimum indicates fill all round holes, and maximum indicates fill all round and triangle holes.
- See fastener patterns in the image gallery.
Code Reports
| Part | IAPMO UES ER | ICC-ES ESR | City of Los Angeles | State of Florida |
|---|---|---|---|---|
| MSCB | No evaluation report listing. | |||
| MSCB45.5 | ER-102 ER-238 | RR25943 | ||
| MSCB47.5 | ER-102 ER-238 | RR25943 | ||
| SCB | See specific model numbers for code listings. | |||
| SCB411.5 | ER-102 ER-238 | RR25943 | FL13872 | |
| SCB43.5 | ER-102 ER-238 | RR25943 | FL13872 | |
| SCB45.5 | ER-102 ER-238 | RR25943 | FL13872 | |
| SCB47.5 | ER-102 ER-238 | RR25943 | FL13872 | |
| SCB49.5 | ER-102 ER-238 | RR25943 | FL13872 | |
Drawings
| Part | Orthographic | Perspective |
|---|---|---|
| MSCB45.5 | None | None |
| MSCB45.5-KT | None | |
| MSCB47.5 | None | None |
| MSCB47.5-KT | None | |
| SCB411.5-KT | ||
| SCB43.5-KT | ||
| SCB45.5-KT | ||
| SCB47.5-KT | ||
| SCB49.5-KT |
