This kit is designed for use with GAI-TRONICS weatherproof enclosures and telephones with mounting hole spacing of 8.5 H ×7.0 W inches (215.9 × 177.8 mm). This kit includes: (1) Mounting bracket, (2) 3/8-16 U-bolts with nuts and mounting plate, (4) 1/4–20 × 1/2 inch, Phillips screws, (4) 3/8 inch washers