Easy to tighten  Fastener Expertise Q & A  Phase 3
When the threaded joint is used, if the total thickness of the joint is large, and the material is soft and the strength is low, but it is not necessary to install and disassemble frequently, it is preferable to adopt the double-head stud connection. is it right or not?
Review: Easy to solve the second question. The triangular thread is a commonly used coupling thread because of its large equivalent friction coefficient and high strength. is it right or not?
Answer: Correct
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