Fits: Stihl FS160, FS220, FS280, FS300, FS310, FS350, FS360C-E, FS400, FS410, FS450, FS460C-EM, FS490C-EM & FS480. Replaces AutoCut 40-2 and will fit any machine that had the 40-2 fitted previously.

Replaces OEM: 
40-2, 4003 710 2125

Size: 
 M12x1.5 LH
will fit other strimmers with male fitting, the size about
will not fit 10mm or 14mm
Please do not assume if your machine is listed here that this will fit, 9 out of 10 times it will but remember it depends on which gear head was fitted or if it has been replaced by you or a previous owner so please check