Place a standard nut on the screw and tighten it down securely.
放置一个标准的螺丝和螺母拧紧了安全。
This is an example of where the matching nut is not always explicitly called out in the ASTM standard.
这是一个例子，那里的配套螺帽并不总是明确要求指出，在ASTM标准。
Standard piece , hot bolt rammer, if high-strength bolt , nut etc.
标准件、螺栓的热镦，如高强度螺栓、螺帽等；
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