Singer 29K Shuttle Hook Tension Spring + Regulating Screw #8611 #662
Item: Singer 29K Shuttle Hook Tension Spring & Regulating Screw for Bobbin Case #8603 Part #8611 #662 Fits Singer 29K Sewing Machines Using Small Bobbins 29-1, 29K71, 29K73, 29K171, 29U171A, 29U173A