LW-340 Malleable Iron Wedge Insert

LW-340 Long Wedge Insert is suitable for use at the bottom of the slab or when additional vertical adjustability is needed.


Shear Tension Concrete Strength Torque
LW-340 17,305 lbs. 17,367 lbs. 4,125 psi 150 ft./lbs.


Askew Head Bolt

  • 3/4” dia. x 2”, 2-1/2”, 3” or 4” long.
  • Available Plain, Stainless Steel or Zinc Plated. Hot Galv available on special order.
  • Askew Head Bolt Performance Data:Carbon Steel
    Carbon Steel 60,000 psi minimum Tensile Strength
    Stainless Steel 70,000 psi minimum Tensile Strength

LW-340 Malleable Iron Wedge Insert Submittal

Askew Head Bolt Submittal


  • Wedge inserts are embedded into concrete slabs
  • Nail holes in the back of the insert allow easy nailing to forms
  • When the forms are stripped, the open face of the insert is flush with the concrete
  • The beveled head of the askew head bolt engages the internal wedge shape of the insert and produces an automatic tightening action when a load is placed on it