Resistance spot welding method and welded member production method

A resistance spot welding method for joining together a plurality of overlapping steel sheets of a sheet combination, the method comprising squeezing the sheet combination between a pair of electrodes and passing a current through the sheet combination while applying an electrode force thereto,

• wherein at least one of the plurality of steel sheets is a surface-treated steel sheet including a metal coating layer, and
• the method satisfies the following relationships,
• 2·D·(t·T·R/(40·F·d))1/2≤H when 0≤D<2
• (6·D−8)·(t·T·R/(40·F·d))1/2≤H when 2≤D<5
• (D+17)·(t·T·R/(40·F·d))1/2≤H when 5≤D<10
• where H (ms) is an electrode force retaining time after completion of current passage, D (mm) is an amount of axis misalignment between the electrodes, wherein D is greater than or equal to 0.5, t (mm) is a total sum of sheet thicknesses of the plurality of overlapping steel sheets, T (MPa) is a tensile strength of a steel sheet having a highest tensile strength among the plurality of steel sheets, F (N) is an electrode force, d (mm) is a tip diameter of one electrode of the pair of electrodes, wherein if the pair of electrodes have different tip diameters, d (mm) is the tip diameter of the one of the pair of electrodes having a smaller tip diameter, and R (mm) is an electrode tip radius of curvature of one electrode of the pair of electrodes, wherein if the pair of electrodes have different electrode tip radii of curvature, R (mm) is the electrode tip radius of curvature of the one of the pair of electrodes having a smaller electrode tip radius of curvature, R satisfying 40≤R≤200.