Cut Sheet

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TECH MANUAL – MECHANICAL ANCHORS ©2015 POWERS – REV. G
GENERAL INFORMATION
Section contentS
Mechanical anchors
General Information ...................... 1
Material and Installation
Specifications .................................1
Performance Data .......................... 2
Design Criteria
(Allowable Stress Design) ............3
Ordering Information .................... 4
Mini Dropin
Thread Version
• UNCThread
anchor MaTerials
• ZincPlatedCarbonSteel
rod/anchor size range (TYP.)
• 1/4”diameterto1/2”diameter
suiTable base MaTerials
• Normal-weightConcrete
• LightweightConcrete
• PrecastHollowCorePlank
• ConcreteOverSteelDeck
general inforMaTion
Mini Dropin
™
Internally Threaded Expansion Anchor
proDuct Description
The Mini Dropin is a carbon steel machine bolt anchor for use in shallow embedment applications.
In addition to solid concrete and precast hollow core plank, it can be used in post-tensioned
concrete slabs and concrete pours over steel deck.
General applications anD uses
•SuspendingConduit
•FireSprinkler
•CableTraysandStrut
•Utilities
•PipeSupports
•SuspendedLighting
Features anD BeneFits
+ Internallythreadedanchorforeasyboltremovabilityandservicework
+ Idealforprecasthollowcoreplankandpost-tensionedconcreteslabs
+ Lipprovidesushinstallationandconsistentembedment
+ Manualsettingtoolscoresangewhensettoverifyproperexpansiondepth
approvals anD listinGs
•TestedinaccordancewithASTME488andAC01criteria
•FactoryMutualResearchCorporation(FMApprovals)–FileNo.J.I.3002071
Seelistingforapplicablesizes-www.fmglobal.com
GuiDe speciFications
CSI Divisions: 03 16 00 - Concrete Anchors and 05 05 19 - Post-Installed Concrete Anchors.
Anchors shall be Mini Dropin anchors as supplied by Powers Fasteners, Inc., Brewster, NY.
MaTerial and insTallaTion sPecificaTions
Material Specification
Anchor Component Carbon Steel
Anchor Body
SAE 1009
Plug
SAE 1009
Zinc Plating
ASTM B633, SC1, Type III (Fe/Zn 5)
Installation Specification
Dimension
Rod/Anchor Diameter, d
1/4” 3/8” 1/2”
ANSI Drill Bit Size d
bit
(in.) 3/8 1/2 5/8
Maximum Tightening Torque, T
max
, (ft-lbs) 3 5 10
Thread Size (UNC) 1/4-20 3/8-16 1/2-13
Thread Depth (in.) 3/8 13/32 5/8
Overall Anchor Length (in.) 5/8 3/4 1
installation proceDures
Drill a hole into the base
material to the depth of
embedment required.
The tolerances of the drill
bit used must meet the
requirements of ANSI
Standard B212.15.
In post-tensioned
concrete slabs, take care
to avoid drilling into the
post-tensioned cables.
Blow the hole clean of dust
and other materials. Insert
the anchor into the hole
and tap flush with surface.
Using a Powers setting tool
specifically, set the anchor
by driving the tool with a
sufficient number of hammer
blows until the shoulder of
the tool is seated against
the anchor. Anchor will
not hold allowable loads
required if shoulder of
Powers setting tool does
not seat against anchor.
If using a fixture,
position it, insert bolt
and tighten. Most
overhead applications
utilize threaded rod.
Minimum thread
engagement should
be at least one
anchor diameter.