Lag Shield
1/4" Lag Shield 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
1/4"
Pilot Hole Size
1/2"
Pilot Hole Depth
1-1/4" (short) / 1-3/4" (long)
Embedment Depth
1" (short) / 1-1/2" (long)
Torque Value
Hand-tight + 1/4 turn
Max Load
300 lbs (tension), 400 lbs (shear)
Material
Zinc-plated lead alloy
Removable
Yes
Available Lengths
Short (1"), Long (1-1/2")
Substrates: Concrete, Brick, Solid block
Best for
- Wood ledgers to masonry
- Fence posts to concrete
- Deck ledger attachment
- Wooden furring strips
Not suitable for
- Hollow block
- High vibration
- Structural loads
- Wet or exterior without stainless lag
Installation tips
- 1.Drill an oversized hole — 1/2" hole for a 1/4" lag shield
- 2.Use a 1/4" lag screw or bolt to drive the anchor — the lag threads into the shield
- 3.Short shields for hard concrete; long shields for softer or older concrete
- 4.Removable — remove the lag screw and reinstall without disturbing the shield
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