Features

• Temperatures to 1200°F; 649°C
• Ideal for short thread engagements
• Wide range of locking element materials

Designed to Improve Product Integrity

The Omni-Lok process is a patented method to make bolts and nuts stay in place, regardless of the extent of vibration or temperature stress. Omni-Lok fasteners meet all specifications of MIL-DTL-18240, including those requiring as many as fifteen reuses.

Omni-Lok fasteners incorporate single or multiple pins, fully contained in holes located within the thread, and held parallel to the longitudinal axis. The pin is precisely located in such a manner that the outer diameter of the pin extends above the root diameter of external threads–and below the minor diameter of internal threads–at a controlled height. This provides the required torque, creating an effective wedge in the threaded assembly for frictional resistance to rotation, i.e. prevailing torque.

The Omni-Lok process is well-suited for special threaded components which require a locking element but have one or more of the following difficult-to-deal with situations;

• Withstand high temperature (up to 1200°F; 649°C), or low temperature (cryogenic) requirements.
• Withstand high vibratory and stress conditions placed on external and internal threaded parts.
• Conforms to MIL-F-8961 requirements.
• Enable parts with a short thread engagement to utilize a self-locking feature.
• High prevailing torque requirement.
• Unusual and non-conventional configurations
• Severe corrosion environmental conditions.

Omni-Lok pins can be fabricated from an almost endless list of materials, such as high temperature resisting alloys and soft ductile materials, in order to provide a controlled and consistent torque for severe applications.

Every Omni-Lok project is special. After discussions between Long-Lok Technical Service personnel and your engineers, a torque requirement specification will be established and a formula developed to control the Omni-Lok process. One or more holes are then formed longitudinally in the bolt at a specified distance inward of the major diameter. One or more pins of proper diameter to fit the hole are then inserted.




See for Yourself

Send us a sample of your part or fastener, along with a brief description of its application and performance requirements, and we’ll process it using the most appropriate Long-Lok thread locking or sealing method. Or, to sample a standard Long-Lok fastener, simply supply us with a part number. Samples are provided free of charge. Call your nearest Long-Lok facility for assistance.