King Arthur's Tools 13734 Universal Flange 5/8''-11NC for power wood carving SECURE & TIGHTEN ANY ACCESSORY! The Universal Nut fits all 5/8 or 14 mm spindle thread shafts. The Universal Flange will securely hold all of your 7/8 (22mm) center hole single accessories on the power tool. The Universal Nut replaces different size 2 pin spanner wrenches for a simple and secure fit.