The use of a larger and thicker incorporated load spreading washer will be required for use with soft materials (e.g. aluminum) or sensitive surfaces. HEICO can provide these incorporated washers on request.
Large Holes or Slots
The incorporated washer must be fully supported under the pressure pins, otherwise the washer could bend or break. In the case of large holes or slots, an additional supporting incorporated washer must be used.
Protruding Bolt Ends
If the bolt ends protrude too far through the joint an additional incorporated washer can be provided to position the HEICO-TEC® Tension Nut properly.