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Specifications

Electrical box support fasteners

Eaton offers a wide range of Eaton B-Line series electrical box support fastener solutions.  Below are many of the options.  For the full offering and additional specifications, view or download the B-Line series fastener catalog.

Hands free stud mount box support bracket

  • Simple push bracket holds itself to stud, leaving hands free to secure with a screw
  • Two screws shown for stud mounting, but only one required for cULus listing
  • Designed to mount two boxes at same height on either side of the stud
  • Built-in back support accessory for job-site flexibility
  • Bracket accepts 4",  4-11⁄16", and 5" boxes
  • Bracket extender easily snaps off bracket to snap into place as a back support for up to 6" stud depths
  • Marty Mouse ears retain box when plaster ring is removed
  • Rabbit Ears and mud ring allow data communication devices, such as card readers, to be attached to the bracket without the use of a box
  • U.S. and Canada model numbers:
    • BB5-HF for both U.S. and Canada
    • BB5-HFCAN for Canada only
BB5-HF stud mount bracket
BB5-HF stud mount bracket

BB2-16T and BB2-24T telescoping box mounting brackets

  • Completely adjustable, fits range of stud spacings
  • Mounts boxes 1-1/2”, 2-1/8”, 2-1/2” and 2-13/16” deep
  • Increased rigidity with center groove design
  • Only two screws required to mount for 1-1/2” and 2-1/8” box depths
  • Pre-punched screw holes provide easy box installation
  • Bar marked with scale for stud spacing
  • Finish: pre-galvanized
  • Part numbers and descriptions:
    • BB2-16T for metal stud spacing of 11” to 18”
    • BB2-24T for metal stud spacing of 15-1/2” to 26”
BB2-24 telescoping box mounting bracket

 BB4 series box support brackets

  • Improved far-side support stands up during drywall installation and out-performs competitors’ brackets
  • Supports 4” or 4-11/16” square boxes
  • Brackets can be piggy-backed in series
  • Finish: pre-galvanized
  • Part numbers and descriptions:
    • BB4-23 for 3-5/8” and 2-1/2” metal stud sizes, single box
    • BB4-4 for 4”, 3-5/8” and 2-1/2”, metal stud sizes, single box 
    • BB4-6 for 6”, 5-1/2”, 3-5/8” and 2-1/2” metal stud sizes, single box
    • BB4-23D for 3-5/8”, 2-1/2” metal stud sizes two-gang boxes
    • BB4-4D for 4”, 3-5/8” and 2-1/2”, metal stud sizes, two-gang boxes 
    • BB4-6D for 6”, 5-1/2”, 3-5/8” and 2-1/2” metal stud sizes, two-gang boxes
BB4-6 box support bracket

BB70 and BB70E box support bracket

  • Interlocking wrap-around design provides extra rigidity
  • Supports most standard 1-gang and 20gang U.S. and Canadian boxed and/or plaster rings 4” sq., 4-11/16” sq. and 5” sq. on either side of stud
  • Adjustable for varying stud depths, 2-1/2” to 6”
  • Compatible with 1-gang and 2-gang Rapid Ring™ and adjustable plaster rings
  • Integral mounting tabs for attaching plaster rings
  • Multiple brackets can be ganged together
  • Pre-fabricated box assemblies available (contact factory)
  • Finish: pre-galvanized
  • Part numbers and descriptions:
    • BB70 for 2-1/2” to 4” stud depth
    • BB70E for 5-1/2” to 6” stud depth
BB70 box support bracket

Double-sided box support bracket with Marty Mouse ears

  • Double-sided box support, designed for pre-fabrication
  • Unit can be installed on either side of stud without repositioning box or devices
  • Patented Marty Mouse ears feature an innovative keyhole pattern to secure outlet box to bracket with or without the plaster ring
  • Wider box opening accommodates 1-gang (B1AJ) or 2-gang (B2AJ) adjustable plaster rings
  • Enhanced far-side support stands up during drywall installation and out-performs competitors’ brackets
  • Finish: pre-galvanized
  • Part numbers and descriptions:
    • BB73 for 3-5/8” and 2-1/2” stud sizes
    • BB74 for 4”, 3-5/8” and 2-1/2” stud sizes
    • BB76 for 6”, 5-1/2”, 3-5/8” and 2-1/2” stud sizes
BB73 double-sided box bracket

BB2TSC box mounting clip

  • Allows for pre-fabrication of the electrical box prior to installing the box onto the bracket
  • Not tools needed; installs by snapping onto the bracket
  • Requires no hardware to secure
  • Pre-fabricated box assemblies available upon request
BB2TSC box mounting clip

BB7 series open box mounting bracket

  • Allows for adjustability of box position between studs
  • Supports most U.S. and Canadian boxed and-or plaster rings 4” sq., 4-11/16” sq., 5” sq. and multi-gang boxes
  • Fits up to 1-1/2”-wide studs 16” to 24” on center
  • Compatible with Rapid Ring™ and adjustable plaster rings
  • Can be field cut to adjust to non-standard stud spacings
  • Stamped markings at ¼”, ½” and 1” increments to allow installer to locate the desired box position easily
  • Part numbers and descriptions:
    • BB7-16 for 16” stud spacing
    • BB7-24 for 24” stud spacing
    • BB7AP, alignment plate accessory
BB7 series open box mount bracket

BB8 series box mounting brackets

  • Increased strength and rigidity to help withstand the stress of drywall installation
  • Supports most U.S. and Canadian boxed and plaster rings 4” sq. and 4-11/16” sq.
  • Compatible with 1-gang and 2-gang Rapid Ring and adjustable plaster rings
  • Pre-fabricated box assemblies available (contact factory)
  • Finish: pre-galvanized
  • Part numbers and description
    • BB8-16 for 16” stud spacing
    • BB8-24 for 24” stud spacing
BB8 series box mounting bracket

 BBFS-18 box mounting bracket floor stand accessory

  • Require no tools to install
  • Helps ensure consistent box height and eliminated need to measure for proper install height
  • Can be used with BB7 series and BB8 series brackets
  • Finish: pre-galvanized
BBFS-18 box mouting floor stand accessory

BBF series floor mount box supports

  • One of the most rigid floor mount box supports in industry
  • Far-side support accommodates 6”, 5-1/2”, 3-5/8” and 2-1/2” stud depths
  • If desired, fold-out tab built-in to attach floor stand to stud
  • Integral “wings” provide rigid support when floor stand is mounted between studs
  • Optional cable containment clip securely attaches to floor stand without hardware
  • Patented Marty Mouse ears enable boxes to be secured in place with or without plaster rings
BBF18 floor mount box supports

BB-18 traditional floor-mount box support

  • Alternative solution: BBF series
  • Provides support for electrical box from floor track to concrete forms
  • 18” length with bread-away feature for 12” or 16” box mounting
  • Finish: pre-galvanized
BB-18 floor mount box support

Uni-Mount box support and cover plate mounting brackets

  • Helps provide secure support for 4” sq. boxes
  • Features built-in plaster ring
  • Rigid bracket design eliminates need for far-side support
  • Enlarged viewing hole makes it easier to find mark lines on the stud
  • Design to gang multiple boxes, and works with BB423 bracket to mount boxed on both sides of stud
  • Finish: pre-galvanized
  • Part numbers and descriptions:
    • BB40-08 for single gang, 1/2” raise
    • BB40-10 for single gang, 5/8” raise
    • BB40-12 for single gang, ¾” raise
    • BB45-08 for double gang, 1/2” raise
    • BB45-10 for double gang, 5/8” raise
    • BB45-12 for double gang, ¾” raise
BB40-10 Uni-Mount box support and cover plate mounting bracket
BB40-10 Uni-Mount single cage, box support and cover plate mounting bracket

BB15 single gang stud bracket cover plate mounting bracket

  • Provides attachment base for low voltage outlets
  • Replaces electrical box in Class 2 low voltage installations
  • Can be piggy-backed
  • For 1/2” and 5/8” drywall applications
  • Finish: pre-galvanized
BB15 single gang bracket cover plate mounting bracket

Electrical box support accessories, clips, retainers and stabilizers

BB1 electrical box support clip

  • Attach electrical box using support clip and screws to metal studs

 

 

 

BB9 electrical box to stud fastener

  • Attaches to electrical boxes (requiring plaster rings) to most metal studs
  • Box mounts flush to back of drywall
  • Easily installed with hammer

BB32 box retainer leveler

  • Adds rigidity to devices in over sized wall openings
  • Holds wiring device firmly in drywall
  • Can be used with switches, receptacles, GFCIs and decorator devices
  • Ideal for positioning devices in pre-fabricated installations
  • Finish: pre-galvanized

 BB12 and BB12-6 adjustable box stabilizers

  • Provides far-side support for electrical boxes in 2-1/2” through 6” studs
  • Cutouts facilitate banding to provide precise installation with greater stability
  • Easily snaps onto box side and plaster ring secured in place
  • Part numbers and descriptions:
    • BB12 for metal stud sizes 2-1/2” through 4”
    • BB12-6 for metal stud size 6”

BF1 series box stabilizers

  • Provides far-side support for electrical boxes
  • Alternative option is BB12
  • Part numbers and descriptions:
    • BF1-40 for 2-1/2” metal stud sizes
    • BF1-56 for 3-1/2” metal stud sizes
    • BF1-64 for 4” metal stud sizes
    • BF1-96 for 6” metal stud sizes
BB12 adjustable box stabilizer

BB2TPC and BB2TCT series pipe / conduit clamp

  • Clamps snap onto telescoping box mounting bracket, no tools required
  • Supports pipe / conduit between wall studs
  • Copper pipe insulator sleeves available to help protect different metals
  • Part numbers and descriptions:
    • Clamps
      • BB2TPC-038 for 3/8" size
      • BB2TPC-050 for 1/2" size
      • BB2TPC-075 for 3/4" size
      • BB2TPC-100 for 1" size
    • Cooper pipe insulator
      • BB2TCT-050 for 1/2" size
      • BB2TCT-075 for 3/4" size
      • BB2TCT-100 for 1" size 
BB2TPC pipe / conduit clamp
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