Strut bolts in standard thread flat head slotted drive. Made of 18-8 gauge stainless steel, strut bolts have 2-1/2" section of thread regardless of size, unlike machine bolts where length of thread varies between manufacturers.
Comments about Jamestown Distributors S/S Strut Bolt FH:
These bolts, which none of my usual local or on-line sources carried, were a perfect replacement when reinstalling an Edson pedestal after core repair.