Original Makita Hex Nut M6 — Part No. 252186-8. Precision hex nut (M6) used to secure the gear housing/spiral bevel gear assembly in many Makita angle grinders and related tools; it’s shown as the fastening nut in Makita parts diagrams.

Direct replacement for a range of grinders — commonly listed for models such as the 9553, 9555, 9556, 9557, 9558 series and several GA-series units (for example GA4034, GA4541C, GA5034/GA5040 variants).

Sold individually and manufactured to Makita specification as a genuine Makita hex nut, this simple, durable M6 fastener restores correct gear retention and helps stop looseness or vibration caused by a missing or worn nut. If you’re sourcing Makita parts to fix a grinder, this original Makita 252186-8 is the exact fastening component you’ll need.

What you get: one genuine Makita 252186-8 hex nut (M6), ready to install — small, inexpensive, and essential for safe, reliable operation of the compatible models listed above.

Browse our full range of Makita grinder parts.