Selection Guide
• Thread size:
3
/8-18 NPS
57
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Gang boxes and accessories
Multi-gang rings
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Concrete/masonry boxes and accessories
Bars for hanging ceiling boxes, concrete box covers, cover plate, box adapter,
4" Octagon concrete boxes and hanging ceiling boxes
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Multi-gang covers – SB and GB series
Cat. No.
Depth
(in.)
Capacity
(cu. in.) Knockouts
Std.
Ctn.
With conduit KOs
" &
" single row
" &
" single row
" &
" single row
" double row
" &
" double row
" &
" double row
" &
" double row
" &
" three rows
Cat. No.
Depth
(in.)
Capacity
(cu. in.) Knockouts
Std.
Ctn.
With conduit KOs
" &
" double row
" double row
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Bars for hanging ceiling boxes
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Concrete box cover plate
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—
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Concrete box covers
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Concrete box adapter
CBP CBP 3/8
H-54561-1/2 & 3/4
54591 1/2 & 3/4
Cat. No.
Length
(in.)
Std.
Ctn.
Cat. No. Description
Std.
Ctn.
CBP
" KOs
With
" and
" KOs
Cat. No. Description
Std.
Ctn.
Two
" KOs and two
" KOs with
"
fixture stud*
Cat. No. Description
Std.
Ctn.
CBA
octagon extension ring on concrete box
or hung ceiling box
Cat. No. Description Std. Ctn.
Fits any Steel City® concrete box.
Two bars required for each box.
54581 1/2 & 3/4
54531 1/2 3/4
54541 1/2 3/4
54551 1/2 & 3/4
54551-3/4 & 1
54561 1/2
54561-1/2 & 3/4
54561-3/4 & 1
54571 1/2 3/4
54571-3/4 & 1
CONCRETE/MASONRY BOXES AND ACCESSORIES