Walter M14 x 2.0 Grinder Lock Nut

Secure Your Abrasives with the Right Hardware

There is nothing more frustrating than reaching for your grinder only to realize the flange nut is missing or stripped. For fabricators and welders using tools with metric spindles, the Walter 48K634 Lock Nut (M14 x 2.0) is the essential replacement part you need to get back to work. Unlike standard 5/8"-11 nuts found in most local hardware bins, this specific nut is designed for M14 spindles, which are common on many European brands (like Metabo, Fein, or Flex) and specific high-performance angle grinders. Trying to force the wrong nut onto your grinder not only damages the tool but creates a serious safety hazard.

This Walter lock nut is built tough. Grinding generates massive amounts of heat, vibration, and torque. You need a nut that won't back off or seize up when you're in the middle of a cut. The 48K634 is machined from hardened steel, ensuring it bites securely against the wheel or backing pad without stripping the threads of your expensive power tool. It is designed to hold everything from grinding rocks to flap discs and backing pads firmly in place, giving you the confidence to lean into your work.

Don't let a lost $10 part stop a $1000 job. Keeping a spare M14 lock nut in your toolbox is a smart move for any professional welder or fabricator. This nut features standard pin-holes for use with your existing grinder wrench, making disc changes quick and easy. Trust Walter Surface Technologies for accessories that match the quality of your work.

Why Choose the Walter 48K634?

• Exact Fit: Guaranteed M14 x 2.0 thread pitch for metric grinders—no guessing or cross-threading.
• Heavy-Duty: Withstands the high RPMs and torque of industrial angle grinders.
• Universal Design: Works with most standard backing pads and abrasive wheels requiring a flange nut.
• Reliable Hold: Keeps your wheel centered and secure for safer, smoother grinding.