Metabo® Locking Nut, For Use with: Models W9-115 Quick, WP9-115 Quick, WP12-115 Quick, WP9-125 Quick, W12-125 Quick, WPB12-125 Quick, WEP15-125 Quick, WEPBA17-125 Quick, WEPBA17-125 Quick DS Angle Grinders, Specifications: 5/8-11 Thread Metabo® 316055450 Locking Nut, 5/8-11 Thread