Compatible aftermarket replacement.Shape and dimensions should be compared before ordering.Some heavy-duty and walking foot machines may require different spring tension specifications. Maintain proper thread tension with this Check Tension Spring for Single Needle Industrial Sewing Machines. Designed for use on thread tension assemblies, this spring helps provide smooth and consistent stitching performance. Made from durable steel for industrial sewing applications, this replacement spring is suitable for various single needle industrial sewing machines. Comparable in style to various industrial thread tension springs including Juki style applications. Not an OEM Juki part. Key Features Used on Thread Tension Assemblies Durable Steel Construction Compatible with Various Single Needle Industrial Sewing Machines Easy to Install Helps Improve Stitch Consistency and Thread Control Product Specifications Brand: Universal / Generic Product Type: Check Tension Spring Compatibility: Single Needle Industrial Sewing Machines Material: Metal (Steel) Units: Each