As the name suggests, a single stitch leather sewing machine is designed to create a single stitch per cycle, using a locking stitch mechanism that produces durable seams. Unlike multi-stitch machines, which might generate various stitch styles and patterns, the single stitch model focuses on creating a robust, reliable seam that stands up to the stresses of daily use. This is particularly important in leatherwork, where the materials often endure significant wear and tear.
Heavy-duty denim thread is typically made from polyester or cotton, providing a strong and resilient structure that can withstand the strain of heavy fabrics. Its thickness, which is significantly greater than standard sewing threads, allows it to create strong seams that can endure wear and tear. Furthermore, heavy-duty denim thread is often pre-waxed or treated to enhance its grip and prevent fraying, ensuring that the seams remain intact even after extensive use.