Singer Embroidery Hoop Frame Tension Screw and Nut
Guaranteed to fit the following models:
FQ4, Futura 5, Futura Quintet 5 in 1, SEQS6000, SEQS6700, XL400, XL420, XL550, XL580
Also fits machines which take the sale looking and sized screw and nut as in the picture. The screw is 78mm long and nut is 7mm long.