Drop-In Anchor
3/8" Drop-In Anchor — Complete Specifications
Pilot hole size, embedment depth, torque values, load ratings, and installation guide per ACI 318-19.
Fastener Specification — ACI 318-19
Diameter
3/8"
Pilot Hole Size
1/2"
Pilot Hole Depth
1-1/4" minimum
Embedment Depth
1" (flush with surface)
Torque Value
Set with setting tool — no torque spec
Max Load
1,100 lbs (tension), 1,400 lbs (shear)
Material
Zinc-plated steel, Stainless steel
Removable
No (permanent)
Available Lengths
1" shell
Substrates: Solid concrete only
Best for
- Suspended ceilings
- Overhead mechanical
- All-thread rod installations
- Pre-set anchor positions
Not suitable for
- Hollow block
- Brick
- Overhead without engineer review
- Field conditions (requires shop setting)
Installation tips
- 1.Requires a special setting tool — the anchor is useless without it
- 2.Drill a 1/2" hole for a 3/8" drop-in anchor (oversized hole is intentional)
- 3.Set the anchor flush with the surface before any fixture is installed
- 4.Commonly used with threaded rod for suspended systems
- 5.Never use overhead without a qualified engineer specifying the installation
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