The 4" (101.6mm) deep cast Bronze Anchor Socket Assembly (AS-100B) provides a suitable mounting point for most residential and many moderate to heavy duty commercial fixtures of 1.90" (48.3mm) outer diameter. The anchor is tapped for and is provided with a 1/4-20 UNC brass ground screw for bonding. Fixtures are secured in the anchor by means of a Wedge Assembly consisting of a cast bronze wedge tapped for a 5/16" (7.9mm) (U.S. thread) 1.25" (31.8mm) long bolt and washer (included).

Picture is aluminum - this anchor is bronze.

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