The Light-Rail screw anchors were tightened at the same tightening torque when they were assembled.

This article proposes that the tightening torque design should be made based on the requirements during bolts design.

Selection of the highstrength bolts,determination of fastening torque values,quality checking of bolts,and shear tests of bolts are illuminated based on the design of the iron tower.

In the new standard, the fastening torque of the ST 2 type locknuts on rolling stock has been improved by 12%~20% than that of the present value.

Based on the principle of the linear relation between nut kinetic frictional tightening torque and axial pre-tightening force of anchor stem which is indirectly measured through measuring the tightening torque,the intrinsically safe portable dynamometer for anchor stem in mine is developed with the ultralow-power MSP430 serial SCM and peripheral circuit.

The value of standardized tightening torque is unreasonable.

Damage failure analysis for composite bolted joints with tightening torque subjected to static loadings;

Aimed at reducing vibration and early failure of engine components caused by inappropriate tightening torque exerted on cylinder head bolts, the relationship between tightening torque of bolts and vibration of engine block is studied in this paper by means of vibration testing system developed on virtual instrument.

Methods Six fixed lumbar cadavers were collected, the effects of design parameter, insertion torque and etc on fixation stability were determined under various BMD by using biomechanical ways.