一种定义
四种语言
Continue to turn the crown until the hour hand lies somewhere between 3 and 9 o'clock.
This fastener is the reinforced version of Universal-Fastening Set 8 and has a universal fastener/crown made from cast stainless steel that is vibration-proof and temperature-resistant.
The anti-torsion feature on the crown of any Universal Fastener can be broken off.