Drop-In Anchor
1/4" Drop-In Anchor
1/4" drop-in anchor specs: 3/8" pilot hole, 5/8" embedment, 500 lbs tension. Requires setting tool. Used with 1/4-20 threaded rod for suspended concrete applications.
Diameter
1/4"
Pilot Hole
3/8"
Embedment
5/8" (flush with surface)
Torque
Set with setting tool — no torque spec
Free Tool \u00b7 ACI 318-19 Compliant
Need this spec\u2019d for your exact load and substrate?
These specs are general reference values. Get the exact anchor diameter, embedment, and edge distance for your specific project.
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Type
Drop-In Anchor
Diameter
1/4"
Available Lengths
5/8" shell
Pilot Hole Diameter
3/8"
Pilot Hole Depth
1" minimum
Embedment Depth
5/8" (flush with surface)
Recommended Torque
Set with setting tool — no torque spec
Compatible Substrates
Solid concrete only
Max Load Rating
500 lbs (tension), 700 lbs (shear)
Material
Zinc-plated steel, Stainless steel
Removable
No — permanent installation
Best For
- ✓Lightweight suspended ceilings
- ✓Pre-set anchoring positions
- ✓All-thread rod (1/4-20)
- ✓Electrical conduit hangers
Not For
- ✗Hollow block
- ✗Brick
- ✗Overhead structural without engineer review
Installation Tips
1.Drill a 3/8" hole for a 1/4" drop-in anchor — the oversized hole is intentional
2.Setting tool is mandatory — do not attempt to set by driving the bolt directly
3.Set flush with or slightly below the concrete surface
4.Used with 1/4-20 threaded rod or machine bolt
Where to Buy
As an Amazon Associate, BuildToolHQ earns from qualifying purchases. Specifications are for guidance only \u2014 always verify against the anchor manufacturer's ICC-ES ESR report and local building codes.