Solid Brass Ball-Bearing Hinge Size (H x W):4" x 4" This hinge is made for

This hinge is made for gates with a curved or arched top

Holes are 3/8" diameter

The main mounting pads are 1-1/2" x 4"

projection is 2-3/8"

Because these items are electronic and improper installation or handling can cause damage to the electronics

Solid Brass Ball-Bearing Hinge Size (H x W):4" x 4" This hinge is made forBall bearing hinges are recommended for heavier doors, doors over 2" thick, doors over 40" wide, or doors which use a door closer. Permanently lubricated ball bearings. Solid brass base material, stainless steel pin. Note: These solid brass ball bearing hinges contain ball bearings and the bearing raceway that will eventually rust if subjected to harsh weather conditions (especially marine weather and salt air conditions).