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National Artcraft® Phenolic Edison Lamp Socket with Bottom Mounting Bracket and Turn Knob
National Artcraft's standard Edison base phenolic turn-knob lamp sockets are made for heavy-duty use. This 3-3/8 metal-lined socket is rated up to 250 watts and 250 volts. The bracket on the bottom is threaded 1/8 IP for lamp pipe or nipples. It is 3/8 W x 5/16 L and will mount into material up to 7/32 thick. The on-off control comes with a turn knob protruding from the bottom bracket. It is easy to wire with just one silver and one brass colored screw for proper assembly. It can be used with either SPT-1 or SPT-2 wire. For indoor use

Price is $9.00
Price: $8.95