Derale Standard Rotation Rigid Steel/Alloy 6 Blade Race Fan Black 18 Inch

Derale Standard Rotation Rigid Steel 6 Blade Race Fan Black 17-3/4 Inch Rated to 8,000 Rpm Blade Pitch 28° 17518. Features:- Aluminium fan blades. Maximum full time airflow. Rated up to 8,000 RPM. 17-3/4" standard rotation rigid fan design. Specifications:- Flange bolt spacing: 1-3/4" - 2-1/4". Depth: 2 1/4". Mounting surface to front: 1 7/16". Mounting surface to rear: 3/4". Rotation: Standard (clockwise). Construction: Powder coated black steel hub.