Allpoints 38-1326 Porcelain Socket; 600V; 600W; 2" Mounting Centers

old style porcelain socket with 2" mounting centers, 600w, 600v rated for junction box lamp assembly # 38-1324 used on old style prior to 11-2003 old style screw mounted sockets will work in new fixture, because the key-hole mounting slots are still in the base.