Genuine Makita part 251861-3 — a metric machine screw sized M10 x 77 mm designed for use in the Makita 3612BR router (listed in the 3612BR parts breakdown).

This is the single fastening screw used to secure the router’s base/assembly components (replace a stripped, bent or missing screw to restore proper alignment and safe operation).

Sold as the original Makita M10×77 screw (often shown as SCREW M10X77, 3612BR and cross-referenced against Makita part listings), it also appears as a replacement for related Makita part references in parts catalogs.

If your repair requires the exact-length threaded fastener specified in the service diagram, this genuine Makita 251861-3 matches the factory spec so the base, nut and mating parts fit and torque as intended.