Concrete Screw (Tapcon)
Tapcon 3/8" Concrete Screw
Full specs for 3/8" Tapcon concrete screws: pilot hole (5/16"), 1-3/4" embedment, 60-85 in-lbs torque, up to 900 lbs tension. Largest standard Tapcon size.
Diameter
3/8"
Pilot Hole
5/16"
Embedment
1-3/4" minimum
Torque
60-85 in-lbs
Free Tool \u00b7 ACI 318-19 Compliant
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These specs are general reference values. Get the exact anchor diameter, embedment, and edge distance for your specific project.
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Type
Concrete Screw (Tapcon)
Diameter
3/8"
Available Lengths
2-1/4", 3", 3-3/4", 4-1/2"
Pilot Hole Diameter
5/16"
Pilot Hole Depth
1-3/4" min
Embedment Depth
1-3/4" minimum
Recommended Torque
60-85 in-lbs
Compatible Substrates
Concrete, Brick, CMU block (solid face), Stone
Max Load Rating
600-900 lbs (tension), 800-1,200 lbs (shear)
Material
Carbon steel (blue), Stainless steel (silver)
Removable
Yes
Best For
- ✓Heavy door frames
- ✓Ledger boards
- ✓Structural brackets
- ✓Machinery mounts (light)
Not For
- ✗Hollow block
- ✗Cracked concrete
- ✗High seismic zones without review
Installation Tips
1.Use a 5/16" carbide masonry bit — the largest common Tapcon size
2.3/8" Tapcons require more torque — use an impact driver or torque wrench
3.Pre-drill with a rotary hammer for cleaner holes and better thread engagement
4.Space anchors minimum 10× diameter (3-3/4") apart for full rated load
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.