Hillman Fasteners 967603 All Purpose Wood Screw, 6x2", Zinc & Yellow Dichromate BF10 Perfect for applications where the

Perfect for applications where the head needs to be recessed beneath the surface

Allows air to enter a closed system to automatically relieve vacuum conditions which could siphon the water from the system

Space-saving design allows heater to be placed at the wall and out of the way

CRACKING CAN OCCUR IF OVERHEATED

Hillman Fasteners 967603 All Purpose Wood Screw, 6x2", Zinc & Yellow Dichromate BF10 Perfect for applications where theThis all purpose wood screw with zinc & yellow dichromate finish measures 6 x 2". Phillips, bugle head, coarse thread. Size: 6 x 2" Finish: zinc & yellow dichromate Driver bit size: #2 phillips bit Thread type: coarse Head style: phillips, bugle head.