Raymarine ST4000+ wheel/tiller autopilot screw size

Raymarine ST4000+ wheel/tiller autopilot uses M4 screws. Details, length ranges and sources below.

M425mmconfirmed

One screw secures the control unit; kit also contains imperial No.8 x 3/4in wood screws

pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20

Replacement screws for Raymarine ST4000+ wheel/tiller autopilot

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