This Jelco HS-20 is similar to the Nagaoka MG-704. Made of Magnesium, it is about 2 grams beefier and slightly shorter so it should be used with the lightest of cartridges. Exactly the same as the Sumiko HS12, similar to the Ortofon LH-2000 which weighs in at 12 grams.
Generally it will fit any turntable with a 'S' (SME/JEI type)shaped tonearm. It requires an empty socket at the front end of the tonearm.Your socket must be .300 inches in diameter, have a notch in the top and the bottom! for the headshell alignment pins and have four contact in the socket in a square pattern as well as a rotating locking on the tonearm to hold this headshell in place. Yes! this unit has two stabilizing alignment pins that pull the top and bottom of the plug tight into your tonearm socket as you rotate the locking collar.If you have a single set screw on the tonearm that holds a headshell in place, then this is not the headshell for you.