nm _cable_fittings_&_supports.GIF (8480 bytes)
horizonline.GIF (1565 bytes)
NON-METALLIC BUSHINGS FOR METAL STUDS

CATALOG UPC/DCI/NAED STUD STD DIM DIM DIM  

 

 

 


  

WASHER             BUSHING

SB13

E161207  LR49636
NUMBER MFG# 01 8997 SIZE PKG A B C
SB13 40115 2 X 4 500 5.670 2.500 .505
SB130 40130 2 X 4 100 5.670 2.500 .505

These bushings will fit existing irregular shaped holes in metal studs, alleviating the need to punch holes in metal studs, weakening the structural member. Use these bushings to comply with paragraph 300-4b(1) of the 2002 NEC code, which states that "in both exposed and concealed locations where nonmetallic-sheathed cables pass through either factory or field punched, cut, or drilled slots or holes in metal members, the cable shall be protected by bushings or grommets covering all metal edges and securely fastened in the opening prior to installation of the cable."
U.S. PAT. #: 5,596,177
CANADA PAT. #: 2,120,684

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INSTALLATION INSTRUCTIONS:
To install these bushings in an irregular shaped hole, pass one end of the joined connector through the hole in the stud. Snap the bushing and the washer ends together. There's no need to separate the two halves. If a punched hole is required, the SB13 and SB14 can be installed in a standard 1" inch trade size, round punched hole (1-3/8" diameter). Snap the bushing end into the hole.

                                 
   

 

 

 

 

 

Common hole configurations in metal studs.

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