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Engineered Components: Prevailing Torque Nuts

Prevailing Torque Nuts Key Details

MacLean-Fogg Component Solutions is a world leader in the manufacture of prevailing torque lock-nuts.  We supply custom prevailing torque internally threaded fasteners to industry since 1925.  Our products include:

  • Hex Nuts
  • Flange Nuts
  • Lock Nut
  • Nylon Insert
  • 2 and 3 piece Nut assemblies
  • Weld Nut
  • Whiz-Lock Serrated Flange Nuts
  • Deflection Nuts
  • Clinck-Lok
  • Nut Assemblies
  • Spline Nuts

Please contact us to discuss how we can product a prevailing torque nut solution for you.


Industries Served


Lead Production Location



Tuesday, July 28, 2015

MFCS Celebrates Three Anniversaries

2015 is a milestone year for Mac-Lean Fogg Company. Not only is the company as a whole celebrating its 90th year in business, but MacLean-Fogg Component Solutions, a division of MacLean-Fogg Company, is also celebrating significant anniversaries in three of its own divisions. » Continue Reading

Friday, April 25, 2014

MacLean ESNA Receives Nadcap Accreditation for NDT (Non-Destructive Testing)

MacLean ESNA announces that it has received Nadcap accreditation for Non-Destructive Testing. MacLean ESNA received Nadcap accreditation for demonstrating their ongoing commitment to quality by satisfying aerospace and defense customer requirements and industry specifications. The certification comes following significant investments and upgrades in ESNA's on site laboratory at the main Pocahontas, AR manufacturing site. » Continue Reading