Prop Nut Kit - MKP9-Prop Kit "A"--Prop # 1865010 - Prop Nut 3/8" A 28,30,32,36, & New 40 lb. ThrustF E A T U R E S- Easy-to-use kit that allows for fast removal/replacement of prop. Available in three different sizes to fit Minn Kota prop dimensions (3/8", 1/2" and 5/16"). Includes prop nut and washer. Requires a crescent wrench for installation. Item fits 3 ¼ or 3 5/8” Minn Kota Trolling Motors.