Product Overview

TECHNICAL GUIDE – MECHANICAL ANCHORS ©2021 DEWALT – REV. E
A
NCHORS & FASTENERS
INSTALLATION SPECIFICATIONS (SD)
Mechanical anchors
14
Installation Detail for Anchors in the Top of Concrete Over Steel Deck
Floor and Roof Assemblies with Minimum Topping Thickness (See Dimensional Profile Requirements)
1,2
Min. 2-1/2"
Min.
1-1/2"
Min. 1-3/4"
(Typ)
Min. 6" (Typ)
Lower Flute (Ridge)
No. 20 Gage Steel Deck Min.
Flute Edge
Upper Flute (Valley)
SAND LIGHTWEIGHT CONCRETE OR NORMAL WEIGHT CONCRETE
OVER STEEL DECK (MINIMUM 2,500 PSI)
Screw-Bolt+ Anchor (Typ)
1. Anchors may be placed in the top side of concrete over steel deck profiles
provided the minimum concrete thickness above the upper flute (topping
thickness), minimum spacing distance and minimum edge distances are
satisfied as given in Anchor Setting Information for Installation on the
Top of Concrete-Filled Steel Deck Assemblies with Minimum Topping
Thickness table.
2. For all other anchor diameters and embedment depths installed in the
top of concrete over steel deck profiles with topping thickness greater
than or equal to the minimum concrete member thicknesses given in
the Installation Specifications in Concrete table, the minimum spacing
distances and minimum edge distances must be used from the Installation
Specifications in Concrete table, as applicable.
Screw-Bolt+ Installation Detail for Anchors in the Soffit of Concrete Over
Steel Deck Floor and Roof Assemblies (See Dimensional Profile Requirements)
1,2,3
Min. 2-1/2"
Max.
3"
Min. 3-7/8"
(Typ)
Min.
1"
Min. 12” (Typ)
Lower Flute (Ridge)
No. 20 Gage Steel Deck Min.
Flute Edge
Upper Flute (Valley)
3/4" Clearance Min.
SAND-LIGHTWEIGHT CONCRETE OR NORMAL WEIGHT CONCRETE
OVER STEEL DECK (MINIMUM 3,000 PSI)
Screw-Bolt+
Anchor (Typ)
1. Anchors may be placed in the upper flute or lower flute of concrete-filled
steel deck profiles provided the minimum hole clearance of 3/4-inch
is satisfied for the selected anchor. See the Tension and Shear Design
information for Anchors Installed in the Soffit of Concrete-Filled Steel Deck
Assemblies table.
2. Anchors in the lower flute may be installed with a maximum 15/16 -inch
offset in either direction from the center of the flute. The offset distance
may be increased proportionally for profiles with lower flute widths greater
than those shown provided the minimum lower flute edge distance is also
satisfied (e.g. 1-1/4 -inch offset for 4-1/2-inch wide flute).
3. See the Tension and Shear Design information for Anchors Installed in the
Soffit of Concrete-Filled Steel Deck Assemblies table for design data.
Screw-Bolt+ Installation Detail for Anchors in the Soffit of Concrete Over
Steel Deck Floor and Roof Assemblies (See Dimensional Profile Requirements)
1,2,3
Min. 2-1/2"
Max.
1-1/2"
Min.
7/8"
Lower Flute (Ridge)
No. 20 Gage Steel Deck Min.
Flute Edge
Upper Flute (Valley)
3/4" Clearance Min.
SAND-LIGHTWEIGHT CONCRETE OR NORMAL WEIGHT CONCRETE
OVER STEEL DECK (MINIMUM 3,000 PSI)
Screw-Bolt+
Anchor (Typ)
Min.
1-3/4"
1. Anchors may be placed in the upper flute or lower flute of the concrete-
filled steel deck profiles provided the minimum hole clearance of 3/4-inch
is satisfied for the selected anchor. See the Tension and Shear Design
information for Anchors Installed in the Soffit of Concrete-Filled Steel Deck
Assemblies table.
2. Anchors in the lower flute may be installed in the center of the flute. An
offset distance may be given proportionally for profiles with flute widths
greater than those shown provided the minimum lower flute edge distance
is also satisfied.
3. See the Tension and Shear Design information for Anchors Installed in the
Soffit of Concrete-Filled Steel Deck Assemblies table for design data.