

HW-340 MALLEABLE IRON WEDGE INSERT
The HW-340 Malleable Iron Wedge Insert is designed for embedding into concrete slabs, allowing for secure and adjustable attachment of materials to concrete structures. Its durable construction and reliable performance make it ideal for use in applications that require secure, load-bearing connections in concrete.
FEATURES
- Installation: Must be installed at least 1-1/2" from the bottom of the slab.
- Easy to Use: Nail holes in the back allow for easy nailing to forms, ensuring secure placement during concrete pour.
- Flush Finish: When the forms are stripped, the open face of the insert is flush with the concrete surface.
- Automatic Tightening: The beveled head of the askew head bolt engages the internal wedge shape of the insert, creating an automatic tightening action under load.
AVAILABLE FINISHES
- Hot-Dip Galvanized
PERFORMANCE DATA
Shear | Tension | Concrete Strength | Torque | |
HW-340 | 16,650 lbs. | 13,093 lbs. | 4,125 psi | 150 ft./lbs. |
Note: All values listed are ultimate capacities in pounds and should be reduced by a minimum safety factor of three to determine allowable working loads.
PACKAGING
- Sold by the piece
NOTE
- The LW-340 Long Wedge Insert is suitable for use at the bottom of the slab or when additional vertical adjustability is required.
ACCESSORY PRODUCT
- Askew Head Bolt (Sold Separately): Available in sizes 3/4” dia. x 2”, 2-1/2”, 3”, and 4” long.
- Askew Head Bolt Performance Data:
Carbon Steel | 60,000 psi minimum Tensile Strength |
Stainless Steel | 70,000 psi minimum Tensile Strength |
RESOURCES

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