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Comparison of Anti-Loosening Characteristics of Various M14 Threaded Fasteners


Affiliations
1 Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
     

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Threaded fastener is widely used in industrial and household applications. It retains good amount of tightening load and also offers easy assembling and disassembling. However, it can be loosened under vibration thereby causing fatal mishaps sometimes. In the present experimental investigation, a comparative study of the anti-loosening tendency of various high tension steel M14 threaded fasteners is evaluated on an indigenously made testing rig offering accelerated test facility. It is observed that the decrease in clamping force is the lowest after 12600 oscillations for nylon wrapped bolt. Hybrid double nut is found to show good resistance to loosening next to nylon wrapped bolt.


Keywords

Threaded Fasteners, Loosening, Nut, Bolt, Metric Bolt, Washer, Anti-Loosening Fastener.
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Abstract Views: 253

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  • Comparison of Anti-Loosening Characteristics of Various M14 Threaded Fasteners

Abstract Views: 253  |  PDF Views: 3

Authors

Supriyo Samanta
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
Soumyajit Das
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
Ranendra Roy
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
Kamalendu Bhukta
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
Anirban Pal
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India
Santanu Das
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, West Bengal, India

Abstract


Threaded fastener is widely used in industrial and household applications. It retains good amount of tightening load and also offers easy assembling and disassembling. However, it can be loosened under vibration thereby causing fatal mishaps sometimes. In the present experimental investigation, a comparative study of the anti-loosening tendency of various high tension steel M14 threaded fasteners is evaluated on an indigenously made testing rig offering accelerated test facility. It is observed that the decrease in clamping force is the lowest after 12600 oscillations for nylon wrapped bolt. Hybrid double nut is found to show good resistance to loosening next to nylon wrapped bolt.


Keywords


Threaded Fasteners, Loosening, Nut, Bolt, Metric Bolt, Washer, Anti-Loosening Fastener.



DOI: https://doi.org/10.24906/isc%2F2012%2Fv26%2Fi6%2F177498