M14 Angle Grinder Flange Nut Set for 115/125mm Bosch

Ever had a perfectly good grinding disc that you couldn’t use because the flange nut was stripped or missing? Or maybe you inherited a Bosch angle grinder from a friend and realized the original hardware vanished into thin air. Replacing those small but critical bits can feel like a hassle—until you remember that the inner and outer flange nuts are often sold separately, and tracking down the right thread size and disc diameter can stall a project fast. That’s exactly the kind of frustration this little set aims to solve.

A Quick Look at What’s in the Bag

This is a straightforward replacement set: one inner flange and one outer flange nut designed for angle grinders with an M14 thread. The specs confirm it works with both 115 mm and 125 mm disc diameters, which covers the two most common sizes for compact angle grinders. The material is steel, so you’re getting a metal component rather than something flimsy. Based on the specs, the set is explicitly listed as compatible with Bosch power tools, though M14 threads are a standard in many grinders—so your mileage may vary with other brands. Quick note: if your grinder uses a different thread pitch, this won’t fit, so it’s worth verifying before you click “buy.”

Why a Solid Steel Replacement Matters

Here’s the thing — when you’re swapping grinding discs frequently, the flange nut takes a beating. Cheap plastic or poorly machined nuts can cross-thread or deform after a few uses. This set is made from steel, which means it should hold up to repeated tightening and loosening. The threaded mounting hole is M14, which aligns with the spindle on a wide range of Bosch angle grinders and many other brands that use the same standard. Real talk: having a spare set on hand can save you a trip to the hardware store mid-project. And because the outer nut has a washer-like design, it helps clamp the disc evenly, which is important for safety and cut quality.

A Couple of Honest Caveats Before You Order

First, the product description is minimal. There’s no mention of whether the nuts are hardened or if they come with any locking feature (like a pin spanner hole). For what it’s worth, some users might miss a locking mechanism for quick disc changes. Second, the compatibility is stated “For Bosch Power Tools,” but without a specific model list, you’ll need to confirm your grinder’s thread size yourself. That said, M14 is incredibly common on Bosch grinders (like the GWS series), so the odds are in your favor. One more minor thing: the listing doesn’t tell you the outer diameter of the flange itself, which could matter if your grinder has a recessed spindle area. If that detail worries you, it might be worth checking with the seller before purchasing.

Is This Set a Smart Grab for Your Toolbox?

Given the price point, this flange nut set is clearly aimed at the budget-conscious DIYer or someone who wants a backup for occasional use. The steel construction common to most replacement hardware, but it’s still a step up from any mystery-metal options. If you already own a Bosch grinder and have lost a nut, or if you’re assembling a grinder from spare parts, this set fits the bill neatly. And because it supports both 115 mm and 125 mm discs, it covers two popular sizes without forcing you to buy two separate sets.

At the end of the day, angle grinder flanges are consumables—they wear, they get dropped, they vanish. Having a spare set tucked away means you waste less time hunting for parts and more time actually cutting or grinding. If the specs match your machine, this steel pair is a straightforward, no‑frills solution. Worth a click if you’re already restocking your tool kit.