Replacement metal thumb screw for the needle clamp bar. In the centre there is a 2.5mm hex hole which enables the needle clamp screw to tightened firmly. 

Early Handi Quilter machines had a black plastic needle thumb screw. We recommend replacing with this one. We would also recommend replacing it if you find that the original allen key screw no longer tightens the screw fully. Damage can be caused to the machine if the needle falls out during sewing.

M3x6 Thumb Screw

QM10558