M75, Minimum Diameter Motor Retainer, 75mm

Minimum Diameter Retainer, 75mm For 75mm Minimum Diameter Airframes or 75mm Motor Mount Tubes Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Red Anodizing 3/8-16 Stainless Steel Stud For Fast, Tape-Free & Tool-Free Motor Change Requires Forward Closure With 3/8-16 Threaded Hole Bonds Into Airframe With J-B Weld or High Strength Epoxy Just Slide Motor In And Screw Onto Stud Mount, That`s It! Top of Retainer Has a 1/4-20 Threaded Hole for Accessory Attachment (Aeropack)