Genuine Makita flat-head square-neck bolt — part no. 265939-6 — designed as the direct replacement screw used in Makita 125 mm brushless disc cutters and circular saws. This is an M6 x 14 mm flat (countersunk) head screw with a short square neck under the head so the screw locks into the mating slot and resists turning or backing out under vibration — exactly what you need when restoring the structural fit and safety of a disc cutter or compact circular saw.

Key details:

- Part number: 265939-6 (Makita).

- Size: M6 x 14 mm, flat/countersunk head, square neck beneath head.

- Purpose: Secures components where a flush-countersunk head and anti-rotation square neck are required (commonly used on Makita DCC500/DHS660/DHS661 series brushless disc cutters/circular saws).

- Sold as a single replacement part for repairs and reassembly; fits into the original Makita mating hole/seat.

Why this part matters for repair: the flat-head profile sits flush with the tool housing or blade guards for safe, snag-free operation, while the square neck prevents the screw from rotating when you torque the nut or when the tool vibrates. Use this original Makita screw when replacing stripped, missing, or damaged fasteners to restore correct alignment and maintain factory fit.

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