Fastener Insights: Extend Lifespan & Reduce Maintenance For Your Vehicles with Spiralock Nuts, Introduction & Selection Guide

Fastener Insights: Extend Lifespan & Reduce Maintenance For Your Vehicles with Spiralock Nuts, Introduction & Selection Guide


What is Spiralock?Spiralock nuts are engineered with a unique 30° wedge ramp at the thread root, creating a self-locking mechanism that resists vibration-induced loosening. Unlike traditional locknuts, Spiralock eliminates the need for adhesives or secondary components, delivering reliable performance in extreme conditions.

Key Features:

Zero Back-Off: Maintains clamp force under high vibration
Reusability: 50+ installation cycles without performance degradation
Material Flexibility: Compatible with steel, titanium, and high-strength alloys

Application Scenarios


Automotive: Critical for EV battery packs and drivetrain assemblies (e.g., Tesla Model Y rear motor mounts).
Heavy Machinery: Secures excavator boom joints against 20G+ vibration loads.
Aerospace: NASA-approved for satellite deployment mechanisms.
Agricultural Machinery: Secures components in tractors, combine harvesters, etc. under extreme vibration and impact loads.


Selection Guide:


Extreme Vibration and Impact: Agricultural and heavy-duty vehicles operate in harsh environments, experiencing extreme vibration and impact. Choose Spiralock nuts with high vibration resistance and impact strength.

Heavy Loads: These vehicles typically carry heavy loads. Ensure the nut’s strength grade and size meet the actual load requirements.

Harsh Environments: Consider factors like corrosion, temperature variations, and chemicals. Choose materials and surface treatments with good corrosion resistance and weather resistance.

Maintenance Cycles: Given the long maintenance cycles of agricultural and heavy-duty vehicles, select Spiralock nuts with high reusability to reduce maintenance costs.

Standard Compliance: Ensure the nuts comply with relevant industry standards and specifications, such as ISO and SAE.

Meet a few members of our dedicated team, ready to help you:
Coco Chen, Director of Business Development: coco.chen@zjzrap.com
Freddie Xiao, Account Manager: freddie.xiao@zjzrap.com
Brian Xu, Technical Sales Assistant: brian.xu@zjzrap.com

Explore our capabilities and comprehensive product range: https://www.zjzrqc.com/product

IATF16949 Certified

HQ& Factory Address:
No. 680, Ya'ao Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province, China


Online Map to see where we are exactly located:

Linkedin Page   •    Products    •    Video Showcase    •    Contact Us       •    CAPAFAIR Ningbo 2025