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Due to the new coronavirus, there has been a surge in demand for safety protective equipment such as masks and protective clothing and therefore, production is not meeting the demand currently.
Some of our products are out of stock and it is difficult to accept orders.
We apologise for the inconvenience caused to you.
We sincerely ask for your kind understanding.
I used a plastic nut so far, but if I make a mistake in the force adjustment, the thread groove may collapse and I was tightening a big bang, but with a metal nut I can tighten securely using a wrench . The width of the part to be wrenched was also wide and easy to use nut.