Concrete Screw (Tapcon)
Tapcon 1/4" Concrete Screw
Full specs for 1/4" Tapcon concrete screws: pilot hole size (3/16"), embedment depth, torque values, load ratings per ACI 318-19, and installation guide.
Diameter
1/4"
Pilot Hole
3/16"
Embedment
1-1/4" minimum
Torque
45-60 in-lbs
Free Tool \u00b7 ACI 318-19 Compliant
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Type
Concrete Screw (Tapcon)
Diameter
1/4"
Available Lengths
1-3/4", 2-1/4", 2-3/4", 3-1/4", 4"
Pilot Hole Diameter
3/16"
Pilot Hole Depth
1-1/4" min
Embedment Depth
1-1/4" minimum
Recommended Torque
45-60 in-lbs
Compatible Substrates
Concrete, Brick, CMU block (solid face), Stone
Max Load Rating
250-500 lbs (tension), 350-600 lbs (shear)
Material
Carbon steel (blue), Stainless steel (silver)
Removable
Yes
Best For
- ✓Lumber to concrete
- ✓Handrail brackets
- ✓Shelving brackets
- ✓Heavier fixtures
Not For
- ✗Hollow block
- ✗High seismic zones without engineer review
- ✗Overhead structural
Installation Tips
1.Use a 3/16" carbide masonry bit — same as the anchor diameter
2.Clean the hole with compressed air before driving
3.Apply steady torque — stop immediately if resistance drops (stripped thread)
4.For exterior use, specify stainless or hot-dip galvanized
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.