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1/4" American Made Drop-in Anchor Zinc Plated, 100/Box

$175.99 per Box of 100
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   Availability: In Stock / Ships Today

  MFG: American Made ThunderDrop®
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Required To Install: 1/4" Drop-In Setting Tool, Each
Products Features
  • STAMPED WITH "USA": Meets most requirements of Made in America
  • SMOOTH ANCHOR BODY: Provides excellent and consistent holding values in concrete
  • INTERNAL NATIONAL COARSE THREADS: Most common threads makes locating threaded rod or bolt fast and easy
  • PRECISION CUT EXPANSION END: Provides for uniform expansion during the installation process
  • NO LIPPED ANCHOR DESIGN: Anchor can be installed at a depth deeper than the anchor body length to provide opportunity for greater holding values
Products specifications
Bit Size 3/8"
Minimum Embedment 1"
Thread Type 1/4" - 20
2000 PSI Concrete - Pull-Out (lbs.) * 939
Type Female
Primary Concrete only
Diameter 1/4"
Length 1"
Material Carbon Steel Zinc Plated
Environment Dry
Box Qty 100
Minimum Spacing 3-3/4"
Minimum Edge Distance 1-7/8"
Minimum Fixture Hole Diameter (In Place) 7/16"
Minimum Fixture Hole Diameter (Hole Spotted) 1/4"
Maximum Torque 5 ft./lbs.
Inside Anchor Diameter-Bolt Diameter 1/4"
Outside Anchor Diameter 3/8"
Internal Thread Length 7/16"
Length Measurement End to End
Bolt Length Fixture Thickness + Embedment Depth
Country American Made
Brand Name ThunderDrop
Application Video

Installation Video
Installing a 1/4" American Made Drop-in Anchor Zinc Plated
  1. Drill a 3/8" hole into the concrete using a carbide-tipped bit that meets ANSI Standards B212.15.
  2. The depth of the hole can be deeper or equal to the minimum embedment depth of 1" which is equal to the length of the anchor .
  3. Clean the hole with a wire brush, vacuum, compressed air, or a blow-out bulb.
  4. Insert the anchor into the hole with the open threaded end facing up.
  5. Take the correct 1/4" American Made Drop-in Anchor Zinc Plated setting tool and insert the smaller diameter end into the threaded portion of the 1/4" American Made Drop-in Anchor Zinc Plated.
  6. Strike the end of the setting tool with a hammer until the anchor is fully set.
  7. The 1/4" American Made Drop-in Anchor Zinc Plated is now set. A 1/4" diameter threaded rod or a bolt can be inserted into it with a maximum torque of 5 ft./lbs.
  8. Always use proper personal protective equipment per manufacturer's and OSHA instructions.

Product Reviews

* The figures above indicate average ultimate tension and shear failure values. A safety factor of 4:1 or 25% of ultimate value is generally accepted as a safe working load. Reference should always be made to applicable codes.

* The bits are recommended by diameter and may not necessarily be the length needed for your application. Please make sure the usable length will work for your application. *

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