Telephone modular jack. Surface mount. Screw-type terminals. Type-625A2 wiring. High-impact plastic housing/plate material. The compact design of this Biscuit Block jack offers improved appearance and space savings for surface mount applications and includes many features to facilitate installation. Unit comes with your choice of modular jacks prewired to combo-head screw terminals. High-reliability features include retainer comb to assure proper contact between jack and plug. Self-tapping screws (Phillips/slot drive combo head screws) and adhesive pad are included. UL listed and CSA certified.