We - Hsiang Kai Fu Co., Ltd. are offering precision engineered Flank Locking Nuts, which are manufactured in our factory based in Taichung, Taiwan. We are accepting domestic and international inquiries for this lock nut, that generally has three locking inserts. These are tactically placed at an angle of 30 degree in terms to the bore of the locknut. These flank style nuts are popular for their accuracy class thread of 4H. All types of Flank Locking Nuts have excellent design and we can provide it with fixed copper threads in 100% mesh by using counter-threads.