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PermLok™ Characteristics

  • Compression between Annulus and Collar causes Nut to lock as it seats on top of Collar.

  • Nut stops turning on the Bolt because of thread interference.

  • Plastic deformation occurs between Annulus Threads and Bolt Threads.

  • Ideally suited for one-time permanent installations.

  • Approximate 60% Bolt Pre-Load is achieved.

  • PermLok inhibits Bolt Over-Torquing.


Real-Time Plot

Sample ID: Broadwind 16MM Nylon
Operator:
Customer: Sullair
Part Number:
Mfg Part Number:
Mfg Job Number:
QC Lot Number: 		Threshold Channel: Input Torque
Threshold Value: 20.0 Lb ft
Peak 0N Torque: 391.5 Lb ft
Angle at Peak: 674.00 deg
Peak Tension: 25569 Lb
Final Angle: 674.75 deg 		Mode: Standard (0N Cycle Only)
Thread Coefficient: 0.12
Underhead Coefficient: 0.14
Reference Coefficient: 0.13 		Torque/Tension Points:
369 Lb ft 25000 Lb
NaN Lb ft 33600 Lb
PermLok™ Torque-Tension Test performed by Wurth Industries North America.


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