Selection Guide
OVERVIEW - STEEL CITY® METALLIC BOXES & COVERS
Knockouts and Pryouts
Steel City® conduit KOs have standard trade size
dimensions. KOs are uniform and true for
attachment of cable or conduit connectors. Pryouts
for cable entrance are slotted – a twist with a
screwdriver removes them. KOs and Pryouts are
precision stamped to permit easy removal, but
remain sufficiently strong and sturdy when not
removed.
Outlet box ears
Mounting ears support the box independent of the
electrical system attachments. Switch boxes have
a fixed ear for old work installations.
face in position for old work (modernization),
except where specifically noted.
Brackets
Tapped holes for grounding
All Steel City® boxes have a 10-32 tapped hole in
the bottom of the box for attaching separate
ground wire.
—
Knockouts
—
07 Eccentric Knockouts
—
08 Pryouts
—
09 S or B Type bracket
Mounts to face of stud.
Used on switch, handy or
square boxes.
2" long x 2
1
8" wide
—
10 T Type bracket
Positions handy box
against the face and side
of stud.
5
1
2" long x
7
8" wide
—
11 SV Type bracket
Mounts box to side of stud
with positioning spikes.
7
3
8" long x 1" wide x
3
8"
offset
—
12 CV Type bracket
(Outlet Boxes)
Mounts to flat side of metal
studs or wood studs.
7
3
8" long x 1" wide x
3
8"
offset
—
13 DV Type bracket
Mounts box offset from
stud 1
1
2".
13
" long x 1" wide x 1
1
2"
offset
—
14 MS Type bracket
(For Metal Studs)
Mounts to any depth of
metal stud, open or
closed side. 2
1
2" long x
1
11
" wide x
3
8" offset;
Far side support to 4" only
—
15 L Type bracket
Used to mount octagon
boxes. 2
5
8" long x 3
5
8"
wide x
1
4" offset
—
V Type bracket
Mounts to flat side of stud.
7
3
8" long x 1" wide x
3
8"
offset
—
—
08
—
12
—
11
—
10
—
14
—
09
—
13
—
07
—
Guide to Steel City® knockouts, pryouts, ears, brackets and clamps
3
⁄4" Conduit KO
1
3
32"
1"
Conduit KO
1
3
⁄8"
7
8"
1
⁄2" Conduit KO
Combination
1
⁄2"
&
3
⁄4" Knockout
Cable Pryouts always in pairs
21
32"
—
15
—
Clamps - For non-metallic sheathed cable and non-metallic tubing (Loom)
UNDERWRITERS LABORATORIES INC. and CANADIAN STANDARDS ASSOCIATION file numbers for individual items available upon request.
5
Description Order Code
Armored Cable (BX) – Steel
Armored Cable (BX) – Aluminum Sizes 14-2 through 10-3
MC Interlocked (MCI) – Steel
.449–.570 Diameter
MC Interlocked (MCI) – Aluminum
MC Corrugated (MCC) – Aluminum .375–.515 Diameter
MCAP™ – Aluminum*
Flex Metal Conduit – Steel
" Trade Size
Flex Metal Conduit – Aluminum
" Trade Size
—
C-5
C-1
C-8
(Loom only)
C-10
C-3
For Armored
Cable
* MCAP
TN
is a trademark of Southwire Company
"Products listed in this catalog are subject to alteration or discontinuation without prior notice."