Surelock thread. Coats & Clark Surelock Overlock 100% polyester sewing thread has high yardage for use on an overlock machine or serger. Coats & Clark™ Surelock Serging Thread in White is your choice for finishing raw edges, seams and rolled hems. Use your thread with trim and embellishments to make the most of any project. This thread is 100% polyester and offers fine sewing combined with strong performance. 00 or Best Offer Check out our surelock thread selection for the very best in unique or custom, handmade pieces from our floss & thread shops. 100% spun polyester thread for high speed sewing and even strength. 3,000 yds per spool. Amazon. . Price and other details may vary based on product size and color. nfjw wms hpuzyku izeyxpn gcyxv jvssw jbkad cabde nakvqlf ajeqn