Hasslefors rigging screws are made from high-grade, marine stainless steel - SS2343 (AISI 316L. Carbon content max 0.03% molybdenum content 2.5-3.0%). The rigging screws have cold rolled threads and are polished for higher corrosion resistance. The rigging screw threads are lubricated with Hasselfors rigging screw oil prior to delivery. To keep your rigging screws in good condition, please lubricate them regularly with our special rigging screw oil.
