The value of tightening torque is relative not only to the nominal diameter and quality class of the bolt, but also to the security of the threaded fastener.
指出螺栓联接的扭紧力矩值不仅与螺栓的公称直径及性能等级有关，还与能否保证联接可靠工作有关。
Girth flange bolting shall be of stud bolt type, threaded full length, and at least M16 for flange of 600 mm and smaller inside diameter and at least M20 for over 600 mm inside diameter flange.
翼缘法兰螺栓应为双头螺栓，螺纹为全长型，内径600mm或以下的法兰的螺栓至少为m 16，内径600 mm以上的法兰的螺栓至少为m 20。
Threaded rock bolts shall be provided with rolled threads of min. 150 mm length of the same corrosion protection or better than the bolt itself.
螺纹岩石锚杆应具有滚压螺纹，最小防腐蚀保护长度150mm，或者比锚杆本身要好；
Tapping is the process of cutting a thread inside a hole so that a cap screw or bolt may be threaded into it.
攻丝是在一个孔中车出螺纹，以便装上有帽螺钉或螺栓。
The screw of bolt revolted into threaded hole directly and the screw thread of them are combined tightly, so the two boards can be connected together firmly.
所述螺钉的螺杆直接旋入所述固定件的螺孔内，二者的螺纹紧密结合，从而可将两板体牢固连接于一起。
The high-strength right-screwing threaded steel bolt is formed by full thread reinforcing bars and cast steel nuts.
一种高强度右旋螺纹钢锚杆，是由全螺纹钢筋和铸钢螺母构成。
The high-strength right-screwing threaded steel bolt is formed by full thread reinforcing bars and cast steel nuts.
一种高强度右旋螺纹钢锚杆，是由全螺纹钢筋和铸钢螺母构成。
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