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Facing the challenges
of tomorrow today

Long-Lok is the engineered fastener company that makes self-locking, self-sealing fasteners specified by the best engineers worldwide. For more than 60 years, Long Lok’s self-locking and self-sealing fastener processes have helped engineers solve threaded component fastening problems.


Locking Type

  • Strip
  • T-Serts (Self Locking inserts)
  • Pellet
  • Poly-Lok Patch
  • Adhesive
  • Self-Seal (O-Ring)
  • Dyna-Thred
  • Dual-Lok
  • Spray Patch

Locking Material

  • Polycap (Nylon) Green -60° F to 250 ° F
  • Kel-F (Polymer) Blue -320° F to 390° F
  • Vespel (SP1) Brown -450° F to 500° F
  • Hot-Lok (Cres) Silver -400° F to 1200° F
  • Polyester (Mylar) Green -100° F to 400° F
  • Spray Patch (Nylon) Pink -60° F to 250° F
  • Dri-Lok (Loctite®) – 200, 201, 202, 203, 204
  • Vibra Seal (Loctite®) – 503, 503HV, 516, 517

Locking Material

  • MIL-F-18240
  • MIL-DTL-18240
  • MIL-F-8961
  • MS 15981
  • MIL-I-45932
  • MIL-S-82496A
  • NAS1283
  • IFI 124
  • IFI 125
  • IFI 524
  • IFI 525

Customer Approvals

Click on the brands to view all the Novaria group precision component companies approved to work with.


ISO 9001


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EEO statement

Novaria Group, along with our cohesive family of companies, is an Equal Opportunity Employer. The Company is committed to equal employment opportunities regardless of age, race, sexual orientation, gender, pregnancy, religion, nationality, ethnic origin, disability, medical history, skin color, marital or parental status. We base all our employment decisions on merit, job requirements and business needs.

Sustainability Statement

Novaria and its business units are committed to the stewardship of our environment through responsible operation within our communities resulting in reduced environmental impact with the safety, health and wellbeing of our employees at the forefront while delivering strong, consistent and profitable growth.