Easy to tighten  Fastener Expertise Q & A    No. 10 No. 10: In various measures to prevent loose thread connection, ______ is ineffective when subjected to shock or vibration loads. Review of the previous issue: Easy to ask questions 9 Rolling thread is more than the thread of the car ______. A. High strength and low productivity B. Low strength and high productivity C. High strength and high productivity D. Low strength and low productivity Answer resolution: C. The production of large diameter threads, the use of rolling threads, can not use the method of threading. We offer a complete range of BS4504 table flanges for use with OD tube and nominal bore pipe in carbon steel and stainless steel to tables D, E, F, and H. Specials can be manufactured to customers' special requirements. We offer a range of ASA 150LB raised face, weld neck, blind and slip-on flanges in grades A105, Q235 and 304, 316 to ASTM A182 specification. BS4504 Flanges,BS4504 Threaded Flanges,Hub Pipe Flanges,Screwed Flange Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.zhongnuoflanges.com
A. Use a locking device with increased friction, such as a spring washer between the nut and the coupled member.
B. Use mechanical means to prevent loosening of the device, such as hexagonal slotted nuts and split pins.
C. Use artificial methods (such as glue or welding) to make the thread pair unable to rotate.
D. The design makes the threaded joint self-locking (even if the thread angle is less than the equivalent friction angle). 
