Product Overview
TECHNICAL GUIDE – MECHANICAL ANCHORS ©2021 DEWALT – REV. D
SECTION CONTENTS
A
NCHORS & FASTENERS
GENERAL INFORMATION
1
Mechanical anchors
General Information.........................1
Material Specifications ...................2
Installation Specifications ..............2
Performance Data (ASD) .................3
Design Criteria
(Allowable Stress Design) ...............4
Ordering Information ....................... 6
SMOOTH WALL DROPIN
FLANGE (LIPPED) DROPIN
THREAD VERSION
• UNC Coarse Thread
• Coil Thread
ANCHOR MATERIALS
• Zinc Plated Carbon Steel
• 303 Stainless Steel
(Domestic Version)
• 304 Stainless Steel
• 316 Stainless Steel
ROD/ANCHOR SIZE RANGE (TYP.)
• 1/4" to 3/4" diameter
UNC (Coarse Thread)
• 1/2" and 3/4" diameter
Coil Thread
SUITABLE BASE MATERIALS
• Normal-weight Concrete
• Lightweight Concrete
GENERAL INFORMATION
STEEL DROPIN
™
Internally Threaded Expansion Anchor
PRODUCT DESCRIPTION
The Steel Dropin is an all-steel, machine bolt anchor available in carbon steel and two types of
stainless steel. It can be used in solid concrete, including lightweight concrete and concrete-filled
steel deck members. The anchors can also be considered for hard stone and solid block base
materials. A coil thread version for forming applications is also available.
GENERAL APPLICATIONS AND USES
• Suspending Conduit
• Fire Sprinkler Supports
• Cable Trays and Strut
• Concrete Formwork
• Pipe Supports
• Suspended Lighting
FEATURES AND BENEFITS
+ Internally threaded anchor for easy bolt removability and service work
+ Flanged (lipped) version installs flush for easy inspection and standard embedment
+ Smooth wall dropin can be installed flush mounted or below the base material surface
(optionally available with a knurled body)
+ Coil thread version accepts coil rod and typically used for concrete formwork applications
TESTING, APPROVALS AND LISTINGS
• Tested in accordance with ASTM E488 in uncracked concrete
• Underwriters Laboratory (UL Listed) – File No. EX1289, see listing for sizes
• FM Approvals (Factory Mutual) – File No. 3059197, see approval for sizes
GUIDE SPECIFICATIONS
CSI Divisions: 03 16 00 - Concrete Anchors and 05 05 19 - Post-Installed Concrete Anchors.
Dropin anchors shall be Steel Dropin as supplied by DEWALT, Towson, MD. Anchors shall be
installed in accordance with published instructions and the Authority Having Jurisdiction.