The ALOK bolt slot insert is a slotted insert designed to be cast into the conical or slab top section of underground
A-LOK Products, Inc.olt slot insert is a slotted insert designed to be cast into the conical or slab top section of underground concrete structures for the purpose of anchoring the cast iron frame to the structure. The insert assembly consists of a tough polypropylene shell and a ¾-in. square galvanized nut to prevent corrosion. The key purpose of the insert is to allow for center to center adjustment of the ¾-in. galvanized nut to match the bolt center of the manhole frame. Traditional anchoring inserts require precise positioning on center to assure proper alignment of assembly. With the availability of the Bolt Slot Insert in overall lengths of 3-in. and 6-in., any manhole frame can be accommodated regardless of bolt centers.
Some key benefits include:
Guaranteed alignment of galvanized nut and bolt centers of manhole frame
In traffic areas, misalignment of frame and structure top is eliminated due to shifting or movement during construction or during routine maintenance
In easement areas, the frame assembly is protected against theft or vandalism by being firmly secured to the structure
Precast top sections can be standardized to accept any manhole frame regardless of bolt centers
<%=company%>, P.O. Box 1647, 697 Main St., Tullytown, PA 19007. Tel: 800-822-2565; Fax: 215-547-5260