Twolok Prevailing Torque Lock Nuts | All-Metal Anti-Vibration - HighFasteners

Product Overview

The Twolok Nut is a high-performance, all-metal prevailing torque locknut featuring a dual locking system: controlled thread distortion and a reinforced locking collar. This creates two independent points of resistance against rotation, providing exceptional anti-loosening performance even under extreme vibration and dynamic loads.

Reusable and durable, it's ideal for heavy machinery, automotive, aerospace, and industrial applications requiring reliable, long-term fastening.

Key Features:

Dual Locking Mechanism: Thread distortion + locking collar for superior vibration resistance.

Reusable Design: All-metal construction allows multiple installations without loss of performance.

High Torque Retention: Maintains clamping force in harsh, high-vibration environments.

Technical Specifications:

Property	Specification
Product Name	Twolok Prevailing Torque Lock Nut
Locking Type	All-Metal Dual (Distortion + Collar)
Material	Stainless Steel / Carbon Steel
Finish	Zinc Plated / Galvanized / Passivated
Grade	4.8 / 6.8 / 8.8 / 10.9 / 12.9
Measurement System	Metric / Imperial
Application	Heavy Industry, Machinery, Automotive, Vibration-Prone Assemblies
Custom Support	OEM/ODM Available

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Factory Direct Price | Fast Delivery | OEM Service

Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158

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Detailed Product Gallery

Technical Drawings & Specifications

Manufacturing & Quality Control

Advanced Cold Heading
Precision manufacturing.

Optical Sorting
0-PPM defects.

Lab Testing
Tensile & Salt Spray.

Project References

Heavy Machinery
Vibration Resistance

Automotive
Reusable Locking

Industrial Assemblies
Extreme Loads

Frequently Asked Questions

Q: Can I get free samples?
Yes! We provide free samples for standard Twolok nuts. You only need to cover the shipping cost.

Q: What grades and finishes do you support?
Grades up to 12.9, stainless/carbon steel, zinc plated standard. Custom options available.

Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.

Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.

Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.

Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.