Garvin 54171-TBAR 4" Octagon T-Bar Box, Back Side Tie Wire & 4 T-Bar Slots, 2-1/8" Deep

2-1/8 in deep 4 in octagon boxes with back side tie wire tabs and (4) side T-bar slots and (2) 1/2 in Bottom knockouts are used to install ceiling lighting fixtures fans convenience junction boxes and devices. The tab on back of the boxes allow tie wires to be secured to ceiling structures. Garvin' octagon boxes are made with a versatile combination head screw that can securely fasten a conduit to an electrical junction box using a slotted Phillips or Robertson head screw driver.