www.pmmag.com/articles/84429-block-plugs

Block Plugs

July 31, 2001
Power Fasteners Inc. introduces two sizes of Wedge-Bolt block plugs to follow up last year's introduction of the Wedge-Bolt anchor and provide added reliability in C-90 block applications. The plugs, available in 1/4- and 3/8-inch diameters can be inserted into the cleaned hole before the Wedge-Bolt is installed.

Circle 23